72881453237305 has 16 divisors (see below), whose sum is σ = 89335468062720. Its totient is φ = 57053816502592.

The previous prime is 72881453237291. The next prime is 72881453237317. The reversal of 72881453237305 is 50373235418827.

It is a cyclic number.

It is not a de Polignac number, because 72881453237305 - 2²³ = 72881444848697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72881453237305.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28133734 + ... + 30614863.

It is an arithmetic number, because the mean of its divisors is an integer number (5583466753920).

Almost surely, 2^{72881453237305} is an apocalyptic number.

It is an amenable number.

72881453237305 is a deficient number, since it is larger than the sum of its proper divisors (16454014825415).

72881453237305 is a wasteful number, since it uses less digits than its factorization.

72881453237305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58753928.

The product of its (nonzero) digits is 33868800, while the sum is 58.

The spelling of 72881453237305 in words is "seventy-two trillion, eight hundred eighty-one billion, four hundred fifty-three million, two hundred thirty-seven thousand, three hundred five".