72621461792 has 24 divisors (see below), whose sum is σ = 155971094832. Its totient is φ = 33009755200.

The previous prime is 72621461791. The next prime is 72621461813. The reversal of 72621461792 is 29716412627.

It is not an unprimeable number, because it can be changed into a prime (72621461791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103155134 + ... + 103155837.

It is an arithmetic number, because the mean of its divisors is an integer number (6498795618).

Almost surely, 2^72621461792 is an apocalyptic number.

It is an amenable number.

72621461792 is an abundant number, since it is smaller than the sum of its proper divisors (83349633040).

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

72621461792 is a wasteful number, since it uses less digits than its factorization.

72621461792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206310992 (or 206310984 counting only the distinct ones).

The product of its digits is 508032, while the sum is 47.

The spelling of 72621461792 in words is "seventy-two billion, six hundred twenty-one million, four hundred sixty-one thousand, seven hundred ninety-two".