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87343979743609 = 271322302508279
BaseRepresentation
bin10011110111000001011010…
…111000101100100101111001
3102110021000002010101111011021
4103313001122320230211321
542422020432303243414
6505433134221502441
724253252146013111
oct2367013270544571
9373230063344137
1087343979743609
1125915412570026
129967a22111a21
13399766aa1a374
14177d684c9a041
15a1703d8a1c24
hex4f705ae2c979

87343979743609 has 4 divisors (see below), whose sum is σ = 87666282252160. Its totient is φ = 87021677235060.

The previous prime is 87343979743589. The next prime is 87343979743621. The reversal of 87343979743609 is 90634797934378.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87343979743609 - 25 = 87343979743577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87343979741609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161151253869 + ... + 161151254410.

It is an arithmetic number, because the mean of its divisors is an integer number (21916570563040).

Almost surely, 287343979743609 is an apocalyptic number.

It is an amenable number.

87343979743609 is a deficient number, since it is larger than the sum of its proper divisors (322302508551).

87343979743609 is a wasteful number, since it uses less digits than its factorization.

87343979743609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322302508550.

The product of its (nonzero) digits is 5184974592, while the sum is 79.

The spelling of 87343979743609 in words is "eighty-seven trillion, three hundred forty-three billion, nine hundred seventy-nine million, seven hundred forty-three thousand, six hundred nine".

Divisors: 1 271 322302508279 87343979743609