79355249049 has 4 divisors (see below), whose sum is σ = 105806998736. Its totient is φ = 52903499364.

The previous prime is 79355249027. The next prime is 79355249053. The reversal of 79355249049 is 94094255397.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 79355249049 - 2²⁷ = 79221031321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79355249049.

It is not an unprimeable number, because it can be changed into a prime (79355249009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13225874839 + ... + 13225874844.

It is an arithmetic number, because the mean of its divisors is an integer number (26451749684).

Almost surely, 2^79355249049 is an apocalyptic number.

It is an amenable number.

79355249049 is a deficient number, since it is larger than the sum of its proper divisors (26451749687).

79355249049 is a wasteful number, since it uses less digits than its factorization.

79355249049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26451749686.

The product of its (nonzero) digits is 12247200, while the sum is 57.

The spelling of 79355249049 in words is "seventy-nine billion, three hundred fifty-five million, two hundred forty-nine thousand, forty-nine".