79438326878 has 8 divisors (see below), whose sum is σ = 119194701768. Its totient is φ = 39706759624.

The previous prime is 79438326857. The next prime is 79438326881. The reversal of 79438326878 is 87862383497.

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

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, 6193901 + ... + 6206712.

It is an arithmetic number, because the mean of its divisors is an integer number (14899337721).

Almost surely, 2^79438326878 is an apocalyptic number.

79438326878 is a deficient number, since it is larger than the sum of its proper divisors (39756374890).

79438326878 is a wasteful number, since it uses less digits than its factorization.

79438326878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12403818.

The product of its digits is 97542144, while the sum is 65.

The spelling of 79438326878 in words is "seventy-nine billion, four hundred thirty-eight million, three hundred twenty-six thousand, eight hundred seventy-eight".