83513780108 has 24 divisors (see below), whose sum is σ = 159512855040. Its totient is φ = 37942367120.

The previous prime is 83513780089. The next prime is 83513780159. The reversal of 83513780108 is 80108731538.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 369248 + ... + 550791.

It is an arithmetic number, because the mean of its divisors is an integer number (6646368960).

Almost surely, 2^83513780108 is an apocalyptic number.

It is an amenable number.

83513780108 is a deficient number, since it is larger than the sum of its proper divisors (75999074932).

83513780108 is a wasteful number, since it uses less digits than its factorization.

83513780108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922117 (or 922115 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 44.

The spelling of 83513780108 in words is "eighty-three billion, five hundred thirteen million, seven hundred eighty thousand, one hundred eight".