79912253421504 has 672 divisors, whose sum is σ = 282841336028160. Its totient is φ = 21060443750400.

The previous prime is 79912253421499. The next prime is 79912253421509. The reversal of 79912253421504 is 40512435221997.

79912253421504 is a `hidden beast` number, since 7 + 9 + 9 + 122 + 5 + 3 + 4 + 2 + 1 + 504 = 666.

It is an interprime number because it is at equal distance from previous prime (79912253421499) and next prime (79912253421509).

It is a tau number, because it is divible by the number of its divisors (672).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79912253421509) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1579861494 + ... + 1579912074.

It is an arithmetic number, because the mean of its divisors is an integer number (420894845280).

Almost surely, 2^{79912253421504} 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 79912253421504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141420668014080).

79912253421504 is an abundant number, since it is smaller than the sum of its proper divisors (202929082606656).

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

79912253421504 is a wasteful number, since it uses less digits than its factorization.

79912253421504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51169 (or 51156 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 79912253421504 in words is "seventy-nine trillion, nine hundred twelve billion, two hundred fifty-three million, four hundred twenty-one thousand, five hundred four".