83507681228 has 6 divisors (see below), whose sum is σ = 146138442156. Its totient is φ = 41753840612.

The previous prime is 83507681189. The next prime is 83507681249. The reversal of 83507681228 is 82218670538.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10438460150 + ... + 10438460157.

It is an arithmetic number, because the mean of its divisors is an integer number (24356407026).

Almost surely, 2^83507681228 is an apocalyptic number.

It is an amenable number.

83507681228 is a deficient number, since it is larger than the sum of its proper divisors (62630760928).

83507681228 is a wasteful number, since it uses less digits than its factorization.

83507681228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20876920311 (or 20876920309 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 50.

The spelling of 83507681228 in words is "eighty-three billion, five hundred seven million, six hundred eighty-one thousand, two hundred twenty-eight".