79263313920 has 624 divisors, whose sum is σ = 327770007552. Its totient is φ = 17323130880.

The previous prime is 79263313903. The next prime is 79263313939. The reversal of 79263313920 is 2931336297.

79263313920 is a `hidden beast` number, since 7 + 9 + 2 + 633 + 1 + 3 + 9 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 29674185 + ... + 29676855.

It is an arithmetic number, because the mean of its divisors is an integer number (525272448).

Almost surely, 2^79263313920 is an apocalyptic number.

79263313920 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79263313920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163885003776).

79263313920 is an abundant number, since it is smaller than the sum of its proper divisors (248506693632).

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

79263313920 is a wasteful number, since it uses less digits than its factorization.

79263313920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2736 (or 2711 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 45.

The spelling of 79263313920 in words is "seventy-nine billion, two hundred sixty-three million, three hundred thirteen thousand, nine hundred twenty".