72514242738 has 64 divisors (see below), whose sum is σ = 185852832000. Its totient is φ = 20528266752.

The previous prime is 72514242737. The next prime is 72514242739. The reversal of 72514242738 is 83724241527.

It is an interprime number because it is at equal distance from previous prime (72514242737) and next prime (72514242739).

It is a junction number, because it is equal to n+sod(n) for n = 72514242693 and 72514242702.

It is not an unprimeable number, because it can be changed into a prime (72514242737) 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, 838783 + ... + 921186.

It is an arithmetic number, because the mean of its divisors is an integer number (2903950500).

Almost surely, 2^72514242738 is an apocalyptic number.

72514242738 is an abundant number, since it is smaller than the sum of its proper divisors (113338589262).

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

72514242738 is a wasteful number, since it uses less digits than its factorization.

72514242738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760096 (or 1760090 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The spelling of 72514242738 in words is "seventy-two billion, five hundred fourteen million, two hundred forty-two thousand, seven hundred thirty-eight".