79407704427 has 8 divisors (see below), whose sum is σ = 105878321616. Its totient is φ = 52937778432.

The previous prime is 79407704413. The next prime is 79407704459. The reversal of 79407704427 is 72440770497.

It is a happy number.

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

It is not a de Polignac number, because 79407704427 - 2¹⁴ = 79407688043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79407704427.

It is not an unprimeable number, because it can be changed into a prime (79407704477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228223 + ... + 459239.

It is an arithmetic number, because the mean of its divisors is an integer number (13234790202).

Almost surely, 2^79407704427 is an apocalyptic number.

79407704427 is a deficient number, since it is larger than the sum of its proper divisors (26470617189).

79407704427 is a wasteful number, since it uses less digits than its factorization.

79407704427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345597.

The product of its (nonzero) digits is 2765952, while the sum is 51.

The spelling of 79407704427 in words is "seventy-nine billion, four hundred seven million, seven hundred four thousand, four hundred twenty-seven".