72122826460 has 24 divisors (see below), whose sum is σ = 155551394880. Its totient is φ = 28069424064.

The previous prime is 72122826443. The next prime is 72122826469. The reversal of 72122826460 is 6462822127.

It is a super-2 number, since 2×72122826460² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72122826469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48730900 + ... + 48732379.

It is an arithmetic number, because the mean of its divisors is an integer number (6481308120).

Almost surely, 2^72122826460 is an apocalyptic number.

It is an amenable number.

72122826460 is an abundant number, since it is smaller than the sum of its proper divisors (83428568420).

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

72122826460 is a wasteful number, since it uses less digits than its factorization.

72122826460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97463325 (or 97463323 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 72122826460 in words is "seventy-two billion, one hundred twenty-two million, eight hundred twenty-six thousand, four hundred sixty".