8658961881 has 8 divisors (see below), whose sum is σ = 11917711104. Its totient is φ = 5586426960.

The previous prime is 8658961859. The next prime is 8658961921. The reversal of 8658961881 is 1881698568.

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

It is not a de Polignac number, because 8658961881 - 2²³ = 8650573273 is a prime.

It is a super-2 number, since 2×8658961881² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8658965881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46553466 + ... + 46553651.

It is an arithmetic number, because the mean of its divisors is an integer number (1489713888).

Almost surely, 2^8658961881 is an apocalyptic number.

It is an amenable number.

8658961881 is a deficient number, since it is larger than the sum of its proper divisors (3258749223).

8658961881 is a wasteful number, since it uses less digits than its factorization.

8658961881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93107151.

The product of its digits is 6635520, while the sum is 60.

The square root of 8658961881 is about 93053.5430867627. The cubic root of 8658961881 is about 2053.4711669898.

The spelling of 8658961881 in words is "eight billion, six hundred fifty-eight million, nine hundred sixty-one thousand, eight hundred eighty-one".