83980781042 has 16 divisors (see below), whose sum is σ = 127761898752. Its totient is φ = 41393634240.

The previous prime is 83980781041. The next prime is 83980781069. The reversal of 83980781042 is 24018708938.

It is not an unprimeable number, because it can be changed into a prime (83980781041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1209143 + ... + 1276709.

It is an arithmetic number, because the mean of its divisors is an integer number (7985118672).

Almost surely, 2^83980781042 is an apocalyptic number.

83980781042 is a deficient number, since it is larger than the sum of its proper divisors (43781117710).

83980781042 is a wasteful number, since it uses less digits than its factorization.

83980781042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76393.

The product of its (nonzero) digits is 774144, while the sum is 50.

The spelling of 83980781042 in words is "eighty-three billion, nine hundred eighty million, seven hundred eighty-one thousand, forty-two".