86434169520 has 80 divisors (see below), whose sum is σ = 268192334592. Its totient is φ = 23027915520.

The previous prime is 86434169519. The next prime is 86434169537. The reversal of 86434169520 is 2596143468.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×86434169520² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 86434169520.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96789 + ... + 426891.

Almost surely, 2^86434169520 is an apocalyptic number.

86434169520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

86434169520 is an abundant number, since it is smaller than the sum of its proper divisors (181758165072).

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

86434169520 is a wasteful number, since it uses less digits than its factorization.

86434169520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331210 (or 331204 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 86434169520 in words is "eighty-six billion, four hundred thirty-four million, one hundred sixty-nine thousand, five hundred twenty".