83659734040 has 32 divisors (see below), whose sum is σ = 188246916000. Its totient is φ = 33461668864.

The previous prime is 83659734029. The next prime is 83659734047. The reversal of 83659734040 is 4043795638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83659734047) 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, 625416 + ... + 747304.

It is an arithmetic number, because the mean of its divisors is an integer number (5882716125).

Almost surely, 2^83659734040 is an apocalyptic number.

It is an amenable number.

83659734040 is an abundant number, since it is smaller than the sum of its proper divisors (104587181960).

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

83659734040 is a wasteful number, since it uses less digits than its factorization.

83659734040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139059 (or 139055 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 83659734040 in words is "eighty-three billion, six hundred fifty-nine million, seven hundred thirty-four thousand, forty".