80002780830 has 96 divisors (see below), whose sum is σ = 241070888448. Its totient is φ = 18028785600.

The previous prime is 80002780813. The next prime is 80002780853. The reversal of 80002780830 is 3808720008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 849556 + ... + 939015.

It is an arithmetic number, because the mean of its divisors is an integer number (2511155088).

Almost surely, 2^80002780830 is an apocalyptic number.

80002780830 is an abundant number, since it is smaller than the sum of its proper divisors (161068107618).

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

80002780830 is a wasteful number, since it uses less digits than its factorization.

80002780830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788662 (or 1788659 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 80002780830 in words is "eighty billion, two million, seven hundred eighty thousand, eight hundred thirty".