79444300866 has 64 divisors (see below), whose sum is σ = 186740121600. Its totient is φ = 22062877056.

The previous prime is 79444300861. The next prime is 79444300877. The reversal of 79444300866 is 66800344497.

It is a super-2 number, since 2×79444300866² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (79444300861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40431 + ... + 400653.

It is an arithmetic number, because the mean of its divisors is an integer number (2917814400).

Almost surely, 2^79444300866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79444300866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93370060800).

79444300866 is an abundant number, since it is smaller than the sum of its proper divisors (107295820734).

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

79444300866 is a wasteful number, since it uses less digits than its factorization.

79444300866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360383.

The product of its (nonzero) digits is 3483648, while the sum is 51.

The spelling of 79444300866 in words is "seventy-nine billion, four hundred forty-four million, three hundred thousand, eight hundred sixty-six".