872253678402 has 162 divisors, whose sum is σ = 2102407902777. Its totient is φ = 261285543552.

The previous prime is 872253678383. The next prime is 872253678407. The reversal of 872253678402 is 204876352278.

872253678402 is a `hidden beast` number, since 8 + 7 + 22 + 536 + 7 + 84 + 0 + 2 = 666.

872253678402 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 798308297361 + 73945381041 = 893481^2 + 271929^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=660399.

It is not an unprimeable number, because it can be changed into a prime (872253678407) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 1549295773 + ... + 1549296335.

Almost surely, 2^872253678402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 872253678402

872253678402 is an abundant number, since it is smaller than the sum of its proper divisors (1230154224375).

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

872253678402 is a wasteful number, since it uses less digits than its factorization.

872253678402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 54.

The spelling of 872253678402 in words is "eight hundred seventy-two billion, two hundred fifty-three million, six hundred seventy-eight thousand, four hundred two".