861486710916 has 48 divisors (see below), whose sum is σ = 2166217853184. Its totient is φ = 264894502656.

The previous prime is 861486710893. The next prime is 861486710923. The reversal of 861486710916 is 619017684168.

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, 1624905 + ... + 2088848.

It is an arithmetic number, because the mean of its divisors is an integer number (45129538608).

Almost surely, 2^861486710916 is an apocalyptic number.

It is an amenable number.

861486710916 is an abundant number, since it is smaller than the sum of its proper divisors (1304731142268).

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

861486710916 is a wasteful number, since it uses less digits than its factorization.

861486710916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3715260 (or 3715258 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 57.

The spelling of 861486710916 in words is "eight hundred sixty-one billion, four hundred eighty-six million, seven hundred ten thousand, nine hundred sixteen".