83761899732 has 72 divisors (see below), whose sum is σ = 245293653696. Its totient is φ = 23604130944.

The previous prime is 83761899709. The next prime is 83761899733. The reversal of 83761899732 is 23799816738.

83761899732 is a `hidden beast` number, since 8 + 3 + 7 + 618 + 9 + 9 + 7 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 83761899732.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83761899733) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2258238 + ... + 2295029.

Almost surely, 2^83761899732 is an apocalyptic number.

It is an amenable number.

83761899732 is an abundant number, since it is smaller than the sum of its proper divisors (161531753964).

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

83761899732 is a wasteful number, since it uses less digits than its factorization.

83761899732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4553357 (or 4553352 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The spelling of 83761899732 in words is "eighty-three billion, seven hundred sixty-one million, eight hundred ninety-nine thousand, seven hundred thirty-two".