72416252731474 has 4 divisors (see below), whose sum is σ = 108624379097214. Its totient is φ = 36208126365736.

The previous prime is 72416252731393. The next prime is 72416252731483. The reversal of 72416252731474 is 47413725261427.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 71283320273025 + 1132932458449 = 8442945^2 + 1064393^2 .

It is a super-2 number, since 2×72416252731474² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18104063182867 + ... + 18104063182870.

Almost surely, 2^{72416252731474} is an apocalyptic number.

72416252731474 is a deficient number, since it is larger than the sum of its proper divisors (36208126365740).

72416252731474 is a wasteful number, since it uses less digits than its factorization.

72416252731474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36208126365739.

The product of its digits is 15805440, while the sum is 55.

The spelling of 72416252731474 in words is "seventy-two trillion, four hundred sixteen billion, two hundred fifty-two million, seven hundred thirty-one thousand, four hundred seventy-four".