86889621504 has 96 divisors (see below), whose sum is σ = 264741946560. Its totient is φ = 24825593856.

The previous prime is 86889621499. The next prime is 86889621509. The reversal of 86889621504 is 40512698868.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (86889621499) and next prime (86889621509).

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (86889621509) 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, 967149 + ... + 1053164.

It is an arithmetic number, because the mean of its divisors is an integer number (2757728610).

Almost surely, 2^86889621504 is an apocalyptic number.

86889621504 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

86889621504 is an abundant number, since it is smaller than the sum of its proper divisors (177852325056).

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

86889621504 is a wasteful number, since it uses less digits than its factorization.

86889621504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020345 (or 2020325 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 57.

The spelling of 86889621504 in words is "eighty-six billion, eight hundred eighty-nine million, six hundred twenty-one thousand, five hundred four".