72756823458 has 32 divisors (see below), whose sum is σ = 163032494400. Its totient is φ = 21451642560.

The previous prime is 72756823423. The next prime is 72756823459. The reversal of 72756823458 is 85432865727.

It is a junction number, because it is equal to n+sod(n) for n = 72756823398 and 72756823407.

It is not an unprimeable number, because it can be changed into a prime (72756823459) 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, 14894533 + ... + 14899416.

It is an arithmetic number, because the mean of its divisors is an integer number (5094765450).

Almost surely, 2^72756823458 is an apocalyptic number.

72756823458 is an abundant number, since it is smaller than the sum of its proper divisors (90275670942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72756823458 is a wasteful number, since it uses less digits than its factorization.

72756823458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29794002.

The product of its digits is 22579200, while the sum is 57.

The spelling of 72756823458 in words is "seventy-two billion, seven hundred fifty-six million, eight hundred twenty-three thousand, four hundred fifty-eight".