88840920857 has 16 divisors (see below), whose sum is σ = 101387421072. Its totient is φ = 77118566400.

The previous prime is 88840920851. The next prime is 88840920863. The reversal of 88840920857 is 75802904888.

It is an interprime number because it is at equal distance from previous prime (88840920851) and next prime (88840920863).

It can be written as a sum of positive squares in 8 ways, for example, as 27048407296 + 61792513561 = 164464^2 + 248581^2 .

It is a cyclic number.

It is not a de Polignac number, because 88840920857 - 2⁶ = 88840920793 is a prime.

It is a super-2 number, since 2×88840920857² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 88840920796 and 88840920805.

It is not an unprimeable number, because it can be changed into a prime (88840920851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98063 + ... + 432779.

It is an arithmetic number, because the mean of its divisors is an integer number (6336713817).

Almost surely, 2^88840920857 is an apocalyptic number.

It is an amenable number.

88840920857 is a deficient number, since it is larger than the sum of its proper divisors (12546500215).

88840920857 is a wasteful number, since it uses less digits than its factorization.

88840920857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335948.

The product of its (nonzero) digits is 10321920, while the sum is 59.

The spelling of 88840920857 in words is "eighty-eight billion, eight hundred forty million, nine hundred twenty thousand, eight hundred fifty-seven".