72542547617474 has 8 divisors (see below), whose sum is σ = 118705987010448. Its totient is φ = 32973885280660.

The previous prime is 72542547617473. The next prime is 72542547617513. The reversal of 72542547617474 is 47471674524527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 72542547617474.

It is not an unprimeable number, because it can be changed into a prime (72542547617471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1648694264012 + ... + 1648694264055.

It is an arithmetic number, because the mean of its divisors is an integer number (14838248376306).

Almost surely, 2^{72542547617474} is an apocalyptic number.

72542547617474 is a deficient number, since it is larger than the sum of its proper divisors (46163439392974).

72542547617474 is a wasteful number, since it uses less digits than its factorization.

72542547617474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3297388528080.

The product of its digits is 368793600, while the sum is 65.

The spelling of 72542547617474 in words is "seventy-two trillion, five hundred forty-two billion, five hundred forty-seven million, six hundred seventeen thousand, four hundred seventy-four".