72146763964 has 48 divisors (see below), whose sum is σ = 145892075616. Its totient is φ = 30853222400.

The previous prime is 72146763937. The next prime is 72146763967. The reversal of 72146763964 is 46936764127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72146763967) 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 15 ways as a sum of consecutive naturals, for example, 2123172 + ... + 2156884.

It is an arithmetic number, because the mean of its divisors is an integer number (3039418242).

Almost surely, 2^72146763964 is an apocalyptic number.

It is an amenable number.

72146763964 is an abundant number, since it is smaller than the sum of its proper divisors (73745311652).

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

72146763964 is a wasteful number, since it uses less digits than its factorization.

72146763964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36606 (or 36604 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 55.

The spelling of 72146763964 in words is "seventy-two billion, one hundred forty-six million, seven hundred sixty-three thousand, nine hundred sixty-four".