79072367868 has 144 divisors (see below), whose sum is σ = 231852100480. Its totient is φ = 22513292928.

The previous prime is 79072367867. The next prime is 79072367939. The reversal of 79072367868 is 86876327097.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79072367861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 278955 + ... + 485757.

Almost surely, 2^79072367868 is an apocalyptic number.

79072367868 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79072367868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115926050240).

79072367868 is an abundant number, since it is smaller than the sum of its proper divisors (152779732612).

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

79072367868 is a wasteful number, since it uses less digits than its factorization.

79072367868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206888 (or 206883 counting only the distinct ones).

The product of its (nonzero) digits is 42674688, while the sum is 63.

The spelling of 79072367868 in words is "seventy-nine billion, seventy-two million, three hundred sixty-seven thousand, eight hundred sixty-eight".