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7872222861725 = 52538371581931
BaseRepresentation
bin111001010001110010100…
…0011000001100110011101
31000212120120202011020021112
41302203211003001212131
52012434303023033400
624424241012311405
71441515010156265
oct162434503014635
930776522136245
107872222861725
112565655639012
12a71833612565
134514693c6b31
141d30364c27a5
15d9b94337835
hex728e50c199d

7872222861725 has 24 divisors (see below), whose sum is σ = 10065564950112. Its totient is φ = 6104506990400.

The previous prime is 7872222861719. The next prime is 7872222861829. The reversal of 7872222861725 is 5271682222787.

It is not a de Polignac number, because 7872222861725 - 26 = 7872222861661 is a prime.

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35680991 + ... + 35900940.

It is an arithmetic number, because the mean of its divisors is an integer number (419398539588).

Almost surely, 27872222861725 is an apocalyptic number.

It is an amenable number.

7872222861725 is a deficient number, since it is larger than the sum of its proper divisors (2193342088387).

7872222861725 is a wasteful number, since it uses less digits than its factorization.

7872222861725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71582077 (or 71582072 counting only the distinct ones).

The product of its digits is 21073920, while the sum is 59.

The spelling of 7872222861725 in words is "seven trillion, eight hundred seventy-two billion, two hundred twenty-two million, eight hundred sixty-one thousand, seven hundred twenty-five".

Divisors: 1 5 25 53 83 265 415 1325 2075 4399 21995 109975 71581931 357909655 1789548275 3793842343 5941300273 18969211715 29706501365 94846058575 148532506825 314888914469 1574444572345 7872222861725