79912179072 has 576 divisors, whose sum is σ = 277763850000. Its totient is φ = 22773104640.

The previous prime is 79912179007. The next prime is 79912179077. The reversal of 79912179072 is 27097121997.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79912179077) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 63980304 + ... + 63981552.

Almost surely, 2^79912179072 is an apocalyptic number.

79912179072 is a gapful number since it is divisible by the number (72) 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 79912179072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138881925000).

79912179072 is an abundant number, since it is smaller than the sum of its proper divisors (197851670928).

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

79912179072 is a wasteful number, since it uses less digits than its factorization.

79912179072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317 (or 1282 counting only the distinct ones).

The product of its (nonzero) digits is 1000188, while the sum is 54.

The spelling of 79912179072 in words is "seventy-nine billion, nine hundred twelve million, one hundred seventy-nine thousand, seventy-two".