79447741319 has 16 divisors (see below), whose sum is σ = 80493652800. Its totient is φ = 78410787840.

The previous prime is 79447741309. The next prime is 79447741337. The reversal of 79447741319 is 91314774497.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79447741319 is a prime.

It is a super-2 number, since 2×79447741319² (a number of 23 digits) contains 22 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 (79447741309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13835789 + ... + 13841529.

It is an arithmetic number, because the mean of its divisors is an integer number (5030853300).

Almost surely, 2^79447741319 is an apocalyptic number.

79447741319 is a deficient number, since it is larger than the sum of its proper divisors (1045911481).

79447741319 is a wasteful number, since it uses less digits than its factorization.

79447741319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6490.

The product of its digits is 5334336, while the sum is 56.

The spelling of 79447741319 in words is "seventy-nine billion, four hundred forty-seven million, seven hundred forty-one thousand, three hundred nineteen".