79809679454 has 8 divisors (see below), whose sum is σ = 119755261080. Its totient is φ = 39891259096.

The previous prime is 79809679447. The next prime is 79809679463. The reversal of 79809679454 is 45497690897.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6782969 + ... + 6794724.

It is an arithmetic number, because the mean of its divisors is an integer number (14969407635).

Almost surely, 2^79809679454 is an apocalyptic number.

79809679454 is a deficient number, since it is larger than the sum of its proper divisors (39945581626).

79809679454 is a wasteful number, since it uses less digits than its factorization.

79809679454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13580634.

The product of its (nonzero) digits is 137168640, while the sum is 68.

The spelling of 79809679454 in words is "seventy-nine billion, eight hundred nine million, six hundred seventy-nine thousand, four hundred fifty-four".