2770921091 has 2 divisors, whose sum is σ = 2770921092. Its totient is φ = 2770921090.

The previous prime is 2770921073. The next prime is 2770921093. The reversal of 2770921091 is 1901290772.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2770921091 is a prime.

It is a Sophie Germain prime.

Together with 2770921093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2770921093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1385460545 + 1385460546.

It is an arithmetic number, because the mean of its divisors is an integer number (1385460546).

Almost surely, 2^2770921091 is an apocalyptic number.

2770921091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2770921091 is an equidigital number, since it uses as much as digits as its factorization.

2770921091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 38.

The square root of 2770921091 is about 52639.5392362053. The cubic root of 2770921091 is about 1404.5635251297.

The spelling of 2770921091 in words is "two billion, seven hundred seventy million, nine hundred twenty-one thousand, ninety-one".