6425616269 has 2 divisors, whose sum is σ = 6425616270. Its totient is φ = 6425616268.

The previous prime is 6425616187. The next prime is 6425616319. The reversal of 6425616269 is 9626165246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5185872169 + 1239744100 = 72013^2 + 35210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6425616269 is a prime.

It is a super-2 number, since 2×6425616269² = 82577088872874960722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6425612269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3212808134 + 3212808135.

It is an arithmetic number, because the mean of its divisors is an integer number (3212808135).

Almost surely, 2^6425616269 is an apocalyptic number.

It is an amenable number.

6425616269 is a deficient number, since it is larger than the sum of its proper divisors (1).

6425616269 is an equidigital number, since it uses as much as digits as its factorization.

6425616269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 47.

The square root of 6425616269 is about 80159.9417976336. The cubic root of 6425616269 is about 1859.1093231456.

The spelling of 6425616269 in words is "six billion, four hundred twenty-five million, six hundred sixteen thousand, two hundred sixty-nine".