86611329720 has 48 divisors (see below), whose sum is σ = 281486822760. Its totient is φ = 23096354496.

The previous prime is 86611329697. The next prime is 86611329769. The reversal of 86611329720 is 2792311668.

86611329720 is a `hidden beast` number, since 8 + 6 + 611 + 3 + 2 + 9 + 7 + 20 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120293154 + ... + 120293873.

Almost surely, 2^86611329720 is an apocalyptic number.

It is an amenable number.

86611329720 is an abundant number, since it is smaller than the sum of its proper divisors (194875493040).

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

86611329720 is a wasteful number, since it uses less digits than its factorization.

86611329720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240587044 (or 240587037 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 86611329720 in words is "eighty-six billion, six hundred eleven million, three hundred twenty-nine thousand, seven hundred twenty".