72555436951 has 8 divisors (see below), whose sum is σ = 75115616400. Its totient is φ = 69999142080.

The previous prime is 72555436927. The next prime is 72555436997. The reversal of 72555436951 is 15963455527.

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

It is a de Polignac number, because none of the positive numbers 2^k-72555436951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72555437951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 933105 + ... + 1007866.

It is an arithmetic number, because the mean of its divisors is an integer number (9389452050).

Almost surely, 2^72555436951 is an apocalyptic number.

72555436951 is a deficient number, since it is larger than the sum of its proper divisors (2560179449).

72555436951 is a wasteful number, since it uses less digits than its factorization.

72555436951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942289.

The product of its digits is 5670000, while the sum is 52.

The spelling of 72555436951 in words is "seventy-two billion, five hundred fifty-five million, four hundred thirty-six thousand, nine hundred fifty-one".