79894081152 has 96 divisors (see below), whose sum is σ = 230254596000. Its totient is φ = 26590695936.

The previous prime is 79894081109. The next prime is 79894081219. The reversal of 79894081152 is 25118049897.

It is a happy number.

79894081152 is a `hidden beast` number, since 7 + 9 + 89 + 408 + 1 + 152 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 706549 + ... + 811787.

It is an arithmetic number, because the mean of its divisors is an integer number (2398485375).

Almost surely, 2^79894081152 is an apocalyptic number.

79894081152 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 79894081152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115127298000).

79894081152 is an abundant number, since it is smaller than the sum of its proper divisors (150360514848).

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

79894081152 is a wasteful number, since it uses less digits than its factorization.

79894081152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105918 (or 105903 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 54.

The spelling of 79894081152 in words is "seventy-nine billion, eight hundred ninety-four million, eighty-one thousand, one hundred fifty-two".