72974373628 has 24 divisors (see below), whose sum is σ = 137644023888. Its totient is φ = 33652219776.

The previous prime is 72974373613. The next prime is 72974373629. The reversal of 72974373628 is 82637347927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72974373629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526126 + ... + 650197.

It is an arithmetic number, because the mean of its divisors is an integer number (5735167662).

Almost surely, 2^72974373628 is an apocalyptic number.

It is an amenable number.

72974373628 is a deficient number, since it is larger than the sum of its proper divisors (64669650260).

72974373628 is a wasteful number, since it uses less digits than its factorization.

72974373628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177533 (or 1177531 counting only the distinct ones).

The product of its digits is 21337344, while the sum is 58.

The spelling of 72974373628 in words is "seventy-two billion, nine hundred seventy-four million, three hundred seventy-three thousand, six hundred twenty-eight".