72563706455 has 8 divisors (see below), whose sum is σ = 91659418800. Its totient is φ = 54995651136.

The previous prime is 72563706443. The next prime is 72563706469. The reversal of 72563706455 is 55460736527.

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

It is a cyclic number.

It is not a de Polignac number, because 72563706455 - 2¹⁴ = 72563690071 is a prime.

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, 381914150 + ... + 381914339.

It is an arithmetic number, because the mean of its divisors is an integer number (11457427350).

Almost surely, 2^72563706455 is an apocalyptic number.

72563706455 is a deficient number, since it is larger than the sum of its proper divisors (19095712345).

72563706455 is a wasteful number, since it uses less digits than its factorization.

72563706455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763828513.

The product of its (nonzero) digits is 5292000, while the sum is 50.

The spelling of 72563706455 in words is "seventy-two billion, five hundred sixty-three million, seven hundred six thousand, four hundred fifty-five".