79519906814 has 4 divisors (see below), whose sum is σ = 119279860224. Its totient is φ = 39759953406.

The previous prime is 79519906813. The next prime is 79519906933. The reversal of 79519906814 is 41860991597.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79519906813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19879976702 + ... + 19879976705.

It is an arithmetic number, because the mean of its divisors is an integer number (29819965056).

Almost surely, 2^79519906814 is an apocalyptic number.

79519906814 is a deficient number, since it is larger than the sum of its proper divisors (39759953410).

79519906814 is a wasteful number, since it uses less digits than its factorization.

79519906814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39759953409.

The product of its (nonzero) digits is 4898880, while the sum is 59.

The spelling of 79519906814 in words is "seventy-nine billion, five hundred nineteen million, nine hundred six thousand, eight hundred fourteen".