79476137856 has 192 divisors, whose sum is σ = 244822032000. Its totient is φ = 24671941632.

The previous prime is 79476137821. The next prime is 79476137921. The reversal of 79476137856 is 65873167497.

79476137856 is a `hidden beast` number, since 7 + 9 + 4 + 7 + 613 + 7 + 8 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 79476137793 and 79476137802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1260621 + ... + 1322163.

It is an arithmetic number, because the mean of its divisors is an integer number (1275114750).

Almost surely, 2^79476137856 is an apocalyptic number.

79476137856 is a gapful number since it is divisible by the number (76) 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 79476137856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122411016000).

79476137856 is an abundant number, since it is smaller than the sum of its proper divisors (165345894144).

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

79476137856 is a wasteful number, since it uses less digits than its factorization.

79476137856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61641 (or 61626 counting only the distinct ones).

The product of its digits is 53343360, while the sum is 63.

The spelling of 79476137856 in words is "seventy-nine billion, four hundred seventy-six million, one hundred thirty-seven thousand, eight hundred fifty-six".