72274132078 has 48 divisors (see below), whose sum is σ = 116194538880. Its totient is φ = 33708135296.

The previous prime is 72274132039. The next prime is 72274132093. The reversal of 72274132078 is 87023147227.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40443501 + ... + 40445287.

It is an arithmetic number, because the mean of its divisors is an integer number (2420719560).

Almost surely, 2^72274132078 is an apocalyptic number.

72274132078 is a deficient number, since it is larger than the sum of its proper divisors (43920406802).

72274132078 is a wasteful number, since it uses less digits than its factorization.

72274132078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2409 (or 2392 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 43.

The spelling of 72274132078 in words is "seventy-two billion, two hundred seventy-four million, one hundred thirty-two thousand, seventy-eight".