83561398760 has 32 divisors (see below), whose sum is σ = 214872168960. Its totient is φ = 28649622336.

The previous prime is 83561398741. The next prime is 83561398799. The reversal of 83561398760 is 6789316538.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a junction number, because it is equal to n+sod(n) for n = 83561398696 and 83561398705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149216504 + ... + 149217063.

It is an arithmetic number, because the mean of its divisors is an integer number (6714755280).

Almost surely, 2^83561398760 is an apocalyptic number.

It is an amenable number.

83561398760 is an abundant number, since it is smaller than the sum of its proper divisors (131310770200).

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

83561398760 is a wasteful number, since it uses less digits than its factorization.

83561398760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298433585 (or 298433581 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 83561398760 in words is "eighty-three billion, five hundred sixty-one million, three hundred ninety-eight thousand, seven hundred sixty".