73378234464 has 36 divisors (see below), whose sum is σ = 192624832764. Its totient is φ = 24458526784.

The previous prime is 73378234453. The next prime is 73378234477. The reversal of 73378234464 is 46443287337.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2640289 + ... + 2667935.

It is an arithmetic number, because the mean of its divisors is an integer number (5350689799).

Almost surely, 2^73378234464 is an apocalyptic number.

It is an amenable number.

73378234464 is an abundant number, since it is smaller than the sum of its proper divisors (119246598300).

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

73378234464 is an frugal number, since it uses more digits than its factorization.

73378234464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55307 (or 27652 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 51.

The spelling of 73378234464 in words is "seventy-three billion, three hundred seventy-eight million, two hundred thirty-four thousand, four hundred sixty-four".