79823603520 has 224 divisors, whose sum is σ = 281956093440. Its totient is φ = 21259376640.

The previous prime is 79823603477. The next prime is 79823603579. The reversal of 79823603520 is 2530632897.

79823603520 is a `hidden beast` number, since 7 + 98 + 2 + 36 + 0 + 3 + 520 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7364505 + ... + 7375335.

It is an arithmetic number, because the mean of its divisors is an integer number (1258732560).

Almost surely, 2^79823603520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79823603520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140978046720).

79823603520 is an abundant number, since it is smaller than the sum of its proper divisors (202132489920).

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

79823603520 is a wasteful number, since it uses less digits than its factorization.

79823603520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11710 (or 11694 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 79823603520 in words is "seventy-nine billion, eight hundred twenty-three million, six hundred three thousand, five hundred twenty".