86706521044 has 48 divisors (see below), whose sum is σ = 184410817920. Its totient is φ = 35125856640.

The previous prime is 86706521023. The next prime is 86706521051. The reversal of 86706521044 is 44012560768.

It is a super-2 number, since 2×86706521044² (a number of 23 digits) contains 22 as substring.

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, 2596944 + ... + 2630119.

It is an arithmetic number, because the mean of its divisors is an integer number (3841892040).

Almost surely, 2^86706521044 is an apocalyptic number.

It is an amenable number.

86706521044 is an abundant number, since it is smaller than the sum of its proper divisors (97704296876).

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

86706521044 is a wasteful number, since it uses less digits than its factorization.

86706521044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5227120 (or 5227118 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 86706521044 in words is "eighty-six billion, seven hundred six million, five hundred twenty-one thousand, forty-four".