79196651520 has 544 divisors, whose sum is σ = 307121372928. Its totient is φ = 17012097024.

The previous prime is 79196651519. The next prime is 79196651539. The reversal of 79196651520 is 2515669197.

It is a tau number, because it is divible by the number of its divisors (544).

It is a super-2 number, since 2×79196651520² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116981422 + ... + 116982098.

Almost surely, 2^79196651520 is an apocalyptic number.

79196651520 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 79196651520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153560686464).

79196651520 is an abundant number, since it is smaller than the sum of its proper divisors (227924721408).

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

79196651520 is an equidigital number, since it uses as much as digits as its factorization.

79196651520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741 (or 711 counting only the distinct ones).

The product of its (nonzero) digits is 1020600, while the sum is 51.

The spelling of 79196651520 in words is "seventy-nine billion, one hundred ninety-six million, six hundred fifty-one thousand, five hundred twenty".