79194938401 has 8 divisors (see below), whose sum is σ = 80263698408. Its totient is φ = 78131760000.

The previous prime is 79194938387. The next prime is 79194938429. The reversal of 79194938401 is 10483949197.

It can be written as a sum of positive squares in 4 ways, for example, as 65677388176 + 13517550225 = 256276^2 + 116265^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79194938401 - 2²¹ = 79192841249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79194638401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1366830 + ... + 1423591.

It is an arithmetic number, because the mean of its divisors is an integer number (10032962301).

Almost surely, 2^79194938401 is an apocalyptic number.

It is an amenable number.

79194938401 is a deficient number, since it is larger than the sum of its proper divisors (1068760007).

79194938401 is a wasteful number, since it uses less digits than its factorization.

79194938401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790803.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 79194938401 in words is "seventy-nine billion, one hundred ninety-four million, nine hundred thirty-eight thousand, four hundred one".