79244098581878 has 4 divisors (see below), whose sum is σ = 118866147872820. Its totient is φ = 39622049290938.

The previous prime is 79244098581839. The next prime is 79244098581899. The reversal of 79244098581878 is 87818589044297.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19811024645468 + ... + 19811024645471.

It is an arithmetic number, because the mean of its divisors is an integer number (29716536968205).

Almost surely, 2^{79244098581878} is an apocalyptic number.

79244098581878 is a deficient number, since it is larger than the sum of its proper divisors (39622049290942).

79244098581878 is a wasteful number, since it uses less digits than its factorization.

79244098581878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39622049290941.

The product of its (nonzero) digits is 2601123840, while the sum is 80.

The spelling of 79244098581878 in words is "seventy-nine trillion, two hundred forty-four billion, ninety-eight million, five hundred eighty-one thousand, eight hundred seventy-eight".