92157670021 has 8 divisors (see below), whose sum is σ = 97911747864. Its totient is φ = 86440596480.

The previous prime is 92157670019. The next prime is 92157670027. The reversal of 92157670021 is 12007675129.

It can be written as a sum of positive squares in 4 ways, for example, as 77373541921 + 14784128100 = 278161^2 + 121590^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 92157670021 - 2¹ = 92157670019 is a prime.

It is a super-2 number, since 2×92157670021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (92157670027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9245940 + ... + 9255901.

It is an arithmetic number, because the mean of its divisors is an integer number (12238968483).

Almost surely, 2^92157670021 is an apocalyptic number.

It is an amenable number.

92157670021 is a deficient number, since it is larger than the sum of its proper divisors (5754077843).

92157670021 is a wasteful number, since it uses less digits than its factorization.

92157670021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18502151.

The product of its (nonzero) digits is 52920, while the sum is 40.

The spelling of 92157670021 in words is "ninety-two billion, one hundred fifty-seven million, six hundred seventy thousand, twenty-one".