2257797869 has 2 divisors, whose sum is σ = 2257797870. Its totient is φ = 2257797868.

The previous prime is 2257797823. The next prime is 2257797901. The reversal of 2257797869 is 9687977522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2082553225 + 175244644 = 45635^2 + 13238^2 .

It is a cyclic number.

It is not a de Polignac number, because 2257797869 - 2⁸ = 2257797613 is a prime.

It is a super-2 number, since 2×2257797869² = 10195302434521882322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2257797809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128898934 + 1128898935.

It is an arithmetic number, because the mean of its divisors is an integer number (1128898935).

Almost surely, 2^2257797869 is an apocalyptic number.

It is an amenable number.

2257797869 is a deficient number, since it is larger than the sum of its proper divisors (1).

2257797869 is an equidigital number, since it uses as much as digits as its factorization.

2257797869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26671680, while the sum is 62.

The square root of 2257797869 is about 47516.2905643949. The cubic root of 2257797869 is about 1311.8827441204.

The spelling of 2257797869 in words is "two billion, two hundred fifty-seven million, seven hundred ninety-seven thousand, eight hundred sixty-nine".