79305707826 has 32 divisors (see below), whose sum is σ = 177290225280. Its totient is φ = 26276938128.

The previous prime is 79305707821. The next prime is 79305707839. The reversal of 79305707826 is 62870750397.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (79305707821) 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 in 15 ways as a sum of consecutive naturals, for example, 4388061 + ... + 4406096.

It is an arithmetic number, because the mean of its divisors is an integer number (5540319540).

Almost surely, 2^79305707826 is an apocalyptic number.

79305707826 is an abundant number, since it is smaller than the sum of its proper divisors (97984517454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79305707826 is a wasteful number, since it uses less digits than its factorization.

79305707826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8794335 (or 8794329 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 54.

The spelling of 79305707826 in words is "seventy-nine billion, three hundred five million, seven hundred seven thousand, eight hundred twenty-six".