72961693454 has 16 divisors (see below), whose sum is σ = 118519647120. Its totient is φ = 33486499200.

The previous prime is 72961693447. The next prime is 72961693523. The reversal of 72961693454 is 45439616927.

It is a self number, because there is not a number n which added to its sum of digits gives 72961693454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7833947 + ... + 7843254.

It is an arithmetic number, because the mean of its divisors is an integer number (7407477945).

Almost surely, 2^72961693454 is an apocalyptic number.

72961693454 is a deficient number, since it is larger than the sum of its proper divisors (45557953666).

72961693454 is a wasteful number, since it uses less digits than its factorization.

72961693454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15677395.

The product of its digits is 9797760, while the sum is 56.

The spelling of 72961693454 in words is "seventy-two billion, nine hundred sixty-one million, six hundred ninety-three thousand, four hundred fifty-four".