83640029876 has 48 divisors (see below), whose sum is σ = 162567793920. Its totient is φ = 37402404480.

The previous prime is 83640029873. The next prime is 83640029899. The reversal of 83640029876 is 67892004638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83640029873) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 368891 + ... + 550781.

It is an arithmetic number, because the mean of its divisors is an integer number (3386829040).

Almost surely, 2^83640029876 is an apocalyptic number.

It is an amenable number.

83640029876 is a deficient number, since it is larger than the sum of its proper divisors (78927764044).

83640029876 is a wasteful number, since it uses less digits than its factorization.

83640029876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182184 (or 182182 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 83640029876 in words is "eighty-three billion, six hundred forty million, twenty-nine thousand, eight hundred seventy-six".