79788873134 has 4 divisors (see below), whose sum is σ = 119683309704. Its totient is φ = 39894436566.

The previous prime is 79788873133. The next prime is 79788873149. The reversal of 79788873134 is 43137888797.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79788873133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19947218282 + ... + 19947218285.

It is an arithmetic number, because the mean of its divisors is an integer number (29920827426).

Almost surely, 2^79788873134 is an apocalyptic number.

79788873134 is a deficient number, since it is larger than the sum of its proper divisors (39894436570).

79788873134 is a wasteful number, since it uses less digits than its factorization.

79788873134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39894436569.

The product of its digits is 56899584, while the sum is 65.

The spelling of 79788873134 in words is "seventy-nine billion, seven hundred eighty-eight million, eight hundred seventy-three thousand, one hundred thirty-four".