2800557778332 has 12 divisors (see below), whose sum is σ = 6534634816136. Its totient is φ = 933519259440.

The previous prime is 2800557778327. The next prime is 2800557778339. The reversal of 2800557778332 is 2338777550082.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2800557778339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116689907419 + ... + 116689907442.

Almost surely, 2^{2800557778332} is an apocalyptic number.

It is an amenable number.

2800557778332 is an abundant number, since it is smaller than the sum of its proper divisors (3734077037804).

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

2800557778332 is a wasteful number, since it uses less digits than its factorization.

2800557778332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233379814868 (or 233379814866 counting only the distinct ones).

The product of its (nonzero) digits is 19756800, while the sum is 57.

The spelling of 2800557778332 in words is "two trillion, eight hundred billion, five hundred fifty-seven million, seven hundred seventy-eight thousand, three hundred thirty-two".