80949365700 has 144 divisors (see below), whose sum is σ = 267761612160. Its totient is φ = 18496558080.

The previous prime is 80949365677. The next prime is 80949365701. The reversal of 80949365700 is 756394908.

It is not an unprimeable number, because it can be changed into a prime (80949365701) 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 47 ways as a sum of consecutive naturals, for example, 10103296 + ... + 10111304.

It is an arithmetic number, because the mean of its divisors is an integer number (1859455640).

Almost surely, 2^80949365700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80949365700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133880806080).

80949365700 is an abundant number, since it is smaller than the sum of its proper divisors (186812246460).

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

80949365700 is a wasteful number, since it uses less digits than its factorization.

80949365700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12846 (or 12839 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 80949365700 in words is "eighty billion, nine hundred forty-nine million, three hundred sixty-five thousand, seven hundred".