72996157542 has 32 divisors (see below), whose sum is σ = 182016393984. Its totient is φ = 18960040800.

The previous prime is 72996157441. The next prime is 72996157543. The reversal of 72996157542 is 24575169927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72996157543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78999709 + ... + 79000632.

It is an arithmetic number, because the mean of its divisors is an integer number (5688012312).

Almost surely, 2^72996157542 is an apocalyptic number.

72996157542 is an abundant number, since it is smaller than the sum of its proper divisors (109020236442).

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

72996157542 is a wasteful number, since it uses less digits than its factorization.

72996157542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158000364.

The product of its digits is 9525600, while the sum is 57.

The spelling of 72996157542 in words is "seventy-two billion, nine hundred ninety-six million, one hundred fifty-seven thousand, five hundred forty-two".