90857327357592 has 96 divisors (see below), whose sum is σ = 259028001414000. Its totient is φ = 28691242709760.

The previous prime is 90857327357557. The next prime is 90857327357593. The reversal of 90857327357592 is 29575372375809.

90857327357592 is a `hidden beast` number, since 9 + 0 + 8 + 5 + 7 + 3 + 27 + 3 + 5 + 7 + 592 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 90857327357592.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90857327357593) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74720334 + ... + 75926562.

Almost surely, 2^{90857327357592} is an apocalyptic number.

It is an amenable number.

90857327357592 is an abundant number, since it is smaller than the sum of its proper divisors (168170674056408).

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

90857327357592 is a wasteful number, since it uses less digits than its factorization.

90857327357592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261321 (or 1261314 counting only the distinct ones).

The product of its (nonzero) digits is 1000188000, while the sum is 72.

The spelling of 90857327357592 in words is "ninety trillion, eight hundred fifty-seven billion, three hundred twenty-seven million, three hundred fifty-seven thousand, five hundred ninety-two".