72146032408 has 32 divisors (see below), whose sum is σ = 139969365120. Its totient is φ = 34826400000.

The previous prime is 72146032373. The next prime is 72146032417. The reversal of 72146032408 is 80423064127.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241093 + ... + 449908.

It is an arithmetic number, because the mean of its divisors is an integer number (4374042660).

Almost surely, 2^72146032408 is an apocalyptic number.

It is an amenable number.

72146032408 is a deficient number, since it is larger than the sum of its proper divisors (67823332712).

72146032408 is a wasteful number, since it uses less digits than its factorization.

72146032408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691459 (or 691455 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 72146032408 in words is "seventy-two billion, one hundred forty-six million, thirty-two thousand, four hundred eight".