2257007778551 has 2 divisors, whose sum is σ = 2257007778552. Its totient is φ = 2257007778550.

The previous prime is 2257007778533. The next prime is 2257007778589. The reversal of 2257007778551 is 1558777007522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2257007778551 - 2²² = 2257003584247 is a prime.

It is a super-2 number, since 2×2257007778551² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2257007778451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128503889275 + 1128503889276.

It is an arithmetic number, because the mean of its divisors is an integer number (1128503889276).

Almost surely, 2^{2257007778551} is an apocalyptic number.

2257007778551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2257007778551 is an equidigital number, since it uses as much as digits as its factorization.

2257007778551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9604000, while the sum is 56.

The spelling of 2257007778551 in words is "two trillion, two hundred fifty-seven billion, seven million, seven hundred seventy-eight thousand, five hundred fifty-one".