72974377724 has 12 divisors (see below), whose sum is σ = 127741393584. Its totient is φ = 36476836704.

The previous prime is 72974377643. The next prime is 72974377741. The reversal of 72974377724 is 42777347927.

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, 2572169 + ... + 2600384.

It is an arithmetic number, because the mean of its divisors is an integer number (10645116132).

Almost surely, 2^72974377724 is an apocalyptic number.

It is an amenable number.

72974377724 is a deficient number, since it is larger than the sum of its proper divisors (54767015860).

72974377724 is a wasteful number, since it uses less digits than its factorization.

72974377724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5176084 (or 5176082 counting only the distinct ones).

The product of its digits is 29042496, while the sum is 59.

The spelling of 72974377724 in words is "seventy-two billion, nine hundred seventy-four million, three hundred seventy-seven thousand, seven hundred twenty-four".