79723325144 has 32 divisors (see below), whose sum is σ = 156001248000. Its totient is φ = 38123455392.

The previous prime is 79723325089. The next prime is 79723325147. The reversal of 79723325144 is 44152332797.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79723325147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1601867 + ... + 1650885.

It is an arithmetic number, because the mean of its divisors is an integer number (4875039000).

Almost surely, 2^79723325144 is an apocalyptic number.

It is an amenable number.

79723325144 is a deficient number, since it is larger than the sum of its proper divisors (76277922856).

79723325144 is a wasteful number, since it uses less digits than its factorization.

79723325144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57887 (or 57883 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 47.

The spelling of 79723325144 in words is "seventy-nine billion, seven hundred twenty-three million, three hundred twenty-five thousand, one hundred forty-four".