86632645920 has 48 divisors (see below), whose sum is σ = 272892836160. Its totient is φ = 23102038784.

The previous prime is 86632645919. The next prime is 86632645927. The reversal of 86632645920 is 2954623668.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (86632645927) 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, 90241860 + ... + 90242819.

It is an arithmetic number, because the mean of its divisors is an integer number (5685267420).

Almost surely, 2^86632645920 is an apocalyptic number.

86632645920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

86632645920 is an abundant number, since it is smaller than the sum of its proper divisors (186260190240).

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

86632645920 is a wasteful number, since it uses less digits than its factorization.

86632645920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180484697 (or 180484689 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 86632645920 in words is "eighty-six billion, six hundred thirty-two million, six hundred forty-five thousand, nine hundred twenty".