4268251997 has 2 divisors, whose sum is σ = 4268251998. Its totient is φ = 4268251996.

The previous prime is 4268251993. The next prime is 4268252039. The reversal of 4268251997 is 7991528624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3858148996 + 410103001 = 62114^2 + 20251^2 .

It is a cyclic number.

It is not a de Polignac number, because 4268251997 - 2² = 4268251993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4268251993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2134125998 + 2134125999.

It is an arithmetic number, because the mean of its divisors is an integer number (2134125999).

Almost surely, 2^4268251997 is an apocalyptic number.

It is an amenable number.

4268251997 is a deficient number, since it is larger than the sum of its proper divisors (1).

4268251997 is an equidigital number, since it uses as much as digits as its factorization.

4268251997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 53.

The square root of 4268251997 is about 65331.8605046573. The cubic root of 4268251997 is about 1622.1213885139.

The spelling of 4268251997 in words is "four billion, two hundred sixty-eight million, two hundred fifty-one thousand, nine hundred ninety-seven".