72646448088 has 32 divisors (see below), whose sum is σ = 181628026560. Its totient is φ = 24213895200.

The previous prime is 72646448071. The next prime is 72646448099. The reversal of 72646448088 is 88084464627.

It is a happy number.

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, 308731 + ... + 490517.

It is an arithmetic number, because the mean of its divisors is an integer number (5675875830).

Almost surely, 2^72646448088 is an apocalyptic number.

It is an amenable number.

72646448088 is an abundant number, since it is smaller than the sum of its proper divisors (108981578472).

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

72646448088 is a wasteful number, since it uses less digits than its factorization.

72646448088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198447 (or 198443 counting only the distinct ones).

The product of its (nonzero) digits is 16515072, while the sum is 57.

The spelling of 72646448088 in words is "seventy-two billion, six hundred forty-six million, four hundred forty-eight thousand, eighty-eight".