2800977799421 has 2 divisors, whose sum is σ = 2800977799422. Its totient is φ = 2800977799420.

The previous prime is 2800977799397. The next prime is 2800977799441. The reversal of 2800977799421 is 1249977790082.

2800977799421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1797715142521 + 1003262656900 = 1340789^2 + 1001630^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2800977799421 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2800977799441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1400488899710 + 1400488899711.

It is an arithmetic number, because the mean of its divisors is an integer number (1400488899711).

Almost surely, 2^{2800977799421} is an apocalyptic number.

It is an amenable number.

2800977799421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2800977799421 is an equidigital number, since it uses as much as digits as its factorization.

2800977799421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32006016, while the sum is 65.

The spelling of 2800977799421 in words is "two trillion, eight hundred billion, nine hundred seventy-seven million, seven hundred ninety-nine thousand, four hundred twenty-one".