86673631440 has 80 divisors (see below), whose sum is σ = 293114471616. Its totient is φ = 21011788800.

The previous prime is 86673631397. The next prime is 86673631469. The reversal of 86673631440 is 4413637668.

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

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 86673631440.

It is a congruent number.

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, 16412821 + ... + 16418100.

Almost surely, 2^86673631440 is an apocalyptic number.

86673631440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

86673631440 is an abundant number, since it is smaller than the sum of its proper divisors (206440840176).

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

86673631440 is a wasteful number, since it uses less digits than its factorization.

86673631440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32830948 (or 32830942 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 48.

The spelling of 86673631440 in words is "eighty-six billion, six hundred seventy-three million, six hundred thirty-one thousand, four hundred forty".