2576328991 has 2 divisors, whose sum is σ = 2576328992. Its totient is φ = 2576328990.

The previous prime is 2576328983. The next prime is 2576329001. The reversal of 2576328991 is 1998236752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2576328991 - 2³ = 2576328983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2576328091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1288164495 + 1288164496.

It is an arithmetic number, because the mean of its divisors is an integer number (1288164496).

Almost surely, 2^2576328991 is an apocalyptic number.

2576328991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2576328991 is an equidigital number, since it uses as much as digits as its factorization.

2576328991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 52.

The square root of 2576328991 is about 50757.5510737072. The cubic root of 2576328991 is about 1370.8831556750.

The spelling of 2576328991 in words is "two billion, five hundred seventy-six million, three hundred twenty-eight thousand, nine hundred ninety-one".