72997406070 has 64 divisors (see below), whose sum is σ = 175860198144. Its totient is φ = 19392024960.

The previous prime is 72997406063. The next prime is 72997406149. The reversal of 72997406070 is 7060479927.

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 31 ways as a sum of consecutive naturals, for example, 19192789 + ... + 19196591.

It is an arithmetic number, because the mean of its divisors is an integer number (2747815596).

Almost surely, 2^72997406070 is an apocalyptic number.

72997406070 is an abundant number, since it is smaller than the sum of its proper divisors (102862792074).

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

72997406070 is a wasteful number, since it uses less digits than its factorization.

72997406070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6077.

The product of its (nonzero) digits is 1333584, while the sum is 51.

The spelling of 72997406070 in words is "seventy-two billion, nine hundred ninety-seven million, four hundred six thousand, seventy".