73772139832 has 16 divisors (see below), whose sum is σ = 138330260640. Its totient is φ = 36884070336.

The previous prime is 73772139827. The next prime is 73772139853. The reversal of 73772139832 is 23893127737.

It is a self number, because there is not a number n which added to its sum of digits gives 73772139832.

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, 86893 + ... + 393820.

It is an arithmetic number, because the mean of its divisors is an integer number (8645641290).

Almost surely, 2^73772139832 is an apocalyptic number.

It is an amenable number.

73772139832 is a deficient number, since it is larger than the sum of its proper divisors (64558120808).

73772139832 is a wasteful number, since it uses less digits than its factorization.

73772139832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499902 (or 499898 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 52.

The spelling of 73772139832 in words is "seventy-three billion, seven hundred seventy-two million, one hundred thirty-nine thousand, eight hundred thirty-two".