90860570998870 has 64 divisors (see below), whose sum is σ = 172472851008000. Its totient is φ = 34368190617600.

The previous prime is 90860570998867. The next prime is 90860570998871. The reversal of 90860570998870 is 7889907506809.

It is a super-2 number, since 2×90860570998870² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90860570998871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1238672695 + ... + 1238746045.

It is an arithmetic number, because the mean of its divisors is an integer number (2694888297000).

Almost surely, 2^{90860570998870} is an apocalyptic number.

90860570998870 is a deficient number, since it is larger than the sum of its proper divisors (81612280009130).

90860570998870 is a wasteful number, since it uses less digits than its factorization.

90860570998870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85253.

The product of its (nonzero) digits is 548674560, while the sum is 76.

The spelling of 90860570998870 in words is "ninety trillion, eight hundred sixty billion, five hundred seventy million, nine hundred ninety-eight thousand, eight hundred seventy".