79774344407 has 4 divisors (see below), whose sum is σ = 79776668400. Its totient is φ = 79772020416.

The previous prime is 79774344389. The next prime is 79774344439. The reversal of 79774344407 is 70444347797.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79774344407 - 2⁶ = 79774344343 is a prime.

It is a super-3 number, since 3×79774344407³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79774314407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1109723 + ... + 1179420.

It is an arithmetic number, because the mean of its divisors is an integer number (19944167100).

Almost surely, 2^79774344407 is an apocalyptic number.

79774344407 is a deficient number, since it is larger than the sum of its proper divisors (2323993).

79774344407 is a wasteful number, since it uses less digits than its factorization.

79774344407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323992.

The product of its (nonzero) digits is 16595712, while the sum is 56.

The spelling of 79774344407 in words is "seventy-nine billion, seven hundred seventy-four million, three hundred forty-four thousand, four hundred seven".