79445055739 has 8 divisors (see below), whose sum is σ = 90839514368. Its totient is φ = 68061888360.

The previous prime is 79445055727. The next prime is 79445055769. The reversal of 79445055739 is 93755054497.

It is a happy number.

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 79445055739 - 2²³ = 79436667131 is a prime.

It is a super-2 number, since 2×79445055739² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79445055719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2807727 + ... + 2835880.

It is an arithmetic number, because the mean of its divisors is an integer number (11354939296).

Almost surely, 2^79445055739 is an apocalyptic number.

79445055739 is a deficient number, since it is larger than the sum of its proper divisors (11394458629).

79445055739 is a wasteful number, since it uses less digits than its factorization.

79445055739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5645625.

The product of its (nonzero) digits is 23814000, while the sum is 58.

It can be divided in two parts, 794450557 and 39, that added together give a square (794450596 = 28186²).

The spelling of 79445055739 in words is "seventy-nine billion, four hundred forty-five million, fifty-five thousand, seven hundred thirty-nine".