80209303902 has 96 divisors (see below), whose sum is σ = 215254533312. Its totient is φ = 21019295232.

The previous prime is 80209303883. The next prime is 80209303903. The reversal of 80209303902 is 20930390208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80209303903) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 101218 + ... + 413114.

It is an arithmetic number, because the mean of its divisors is an integer number (2242234722).

Almost surely, 2^80209303902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80209303902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107627266656).

80209303902 is an abundant number, since it is smaller than the sum of its proper divisors (135045229410).

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

80209303902 is a wasteful number, since it uses less digits than its factorization.

80209303902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312082 (or 312079 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The spelling of 80209303902 in words is "eighty billion, two hundred nine million, three hundred three thousand, nine hundred two".