471721162356 has 36 divisors (see below), whose sum is σ = 1262547818532. Its totient is φ = 147990952704.

The previous prime is 471721162337. The next prime is 471721162477. The reversal of 471721162356 is 653261127174.

471721162356 is a `hidden beast` number, since 4 + 7 + 1 + 7 + 2 + 11 + 623 + 5 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 345920422500 + 125800739856 = 588150^2 + 354684^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×471721162356² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 385392495 + ... + 385393718.

It is an arithmetic number, because the mean of its divisors is an integer number (35070772737).

Almost surely, 2^471721162356 is an apocalyptic number.

It is an amenable number.

471721162356 is an abundant number, since it is smaller than the sum of its proper divisors (790826656176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

471721162356 is a wasteful number, since it uses less digits than its factorization.

471721162356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770786240 (or 770786235 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The spelling of 471721162356 in words is "four hundred seventy-one billion, seven hundred twenty-one million, one hundred sixty-two thousand, three hundred fifty-six".