85988874402 has 30 divisors (see below), whose sum is σ = 192687137643. Its totient is φ = 28661714028.

The previous prime is 85988874401. The next prime is 85988874403. The reversal of 85988874402 is 20447888958.

85988874402 is a `hidden beast` number, since 85 + 9 + 8 + 88 + 74 + 402 = 666.

It is an interprime number because it is at equal distance from previous prime (85988874401) and next prime (85988874403).

It can be written as a sum of positive squares in only one way, i.e., 42994437201 + 42994437201 = 207351^2 + 207351^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=207351.

It is a self number, because there is not a number n which added to its sum of digits gives 85988874402.

It is not an unprimeable number, because it can be changed into a prime (85988874401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 3720799 + ... + 3743837.

Almost surely, 2^85988874402 is an apocalyptic number.

85988874402 is an abundant number, since it is smaller than the sum of its proper divisors (106698263241).

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

85988874402 is an frugal number, since it uses more digits than its factorization.

85988874402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46092 (or 23044 counting only the distinct ones).

The product of its (nonzero) digits is 41287680, while the sum is 63.

The spelling of 85988874402 in words is "eighty-five billion, nine hundred eighty-eight million, eight hundred seventy-four thousand, four hundred two".