72974377740 has 96 divisors (see below), whose sum is σ = 226681701120. Its totient is φ = 17390905600.

The previous prime is 72974377643. The next prime is 72974377741. The reversal of 72974377740 is 4777347927.

It is not an unprimeable number, because it can be changed into a prime (72974377741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 898071 + ... + 975950.

It is an arithmetic number, because the mean of its divisors is an integer number (2361267720).

Almost surely, 2^72974377740 is an apocalyptic number.

It is an amenable number.

72974377740 is an abundant number, since it is smaller than the sum of its proper divisors (153707323380).

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

72974377740 is a wasteful number, since it uses less digits than its factorization.

72974377740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874103 (or 1874101 counting only the distinct ones).

The product of its (nonzero) digits is 14521248, while the sum is 57.

The spelling of 72974377740 in words is "seventy-two billion, nine hundred seventy-four million, three hundred seventy-seven thousand, seven hundred forty".