72612565441 has 16 divisors (see below), whose sum is σ = 78363177984. Its totient is φ = 66885701184.

The previous prime is 72612565397. The next prime is 72612565457. The reversal of 72612565441 is 14456521627.

It is a cyclic number.

It is not a de Polignac number, because 72612565441 - 2¹⁷ = 72612434369 is a prime.

Its product of digits (403200) is a multiple of the sum of its prime divisors (7200).

It is not an unprimeable number, because it can be changed into a prime (72612565481) 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, 14271600 + ... + 14276686.

It is an arithmetic number, because the mean of its divisors is an integer number (4897698624).

Almost surely, 2^72612565441 is an apocalyptic number.

It is an amenable number.

72612565441 is a deficient number, since it is larger than the sum of its proper divisors (5750612543).

72612565441 is a wasteful number, since it uses less digits than its factorization.

72612565441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7200.

The product of its digits is 403200, while the sum is 43.

The spelling of 72612565441 in words is "seventy-two billion, six hundred twelve million, five hundred sixty-five thousand, four hundred forty-one".