73783744832 has 28 divisors (see below), whose sum is σ = 167330993760. Its totient is φ = 31621604736.

The previous prime is 73783744799. The next prime is 73783744901. The reversal of 73783744832 is 23844738737.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (28).

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82347482 + ... + 82348377.

It is an arithmetic number, because the mean of its divisors is an integer number (5976106920).

Almost surely, 2^73783744832 is an apocalyptic number.

It is an amenable number.

73783744832 is an abundant number, since it is smaller than the sum of its proper divisors (93547248928).

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

73783744832 is a wasteful number, since it uses less digits than its factorization.

73783744832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164695878 (or 164695868 counting only the distinct ones).

The product of its digits is 18966528, while the sum is 56.

The spelling of 73783744832 in words is "seventy-three billion, seven hundred eighty-three million, seven hundred forty-four thousand, eight hundred thirty-two".