6409228957 has 2 divisors, whose sum is σ = 6409228958. Its totient is φ = 6409228956.

The previous prime is 6409228933. The next prime is 6409229081. The reversal of 6409228957 is 7598229046.

6409228957 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6395840676 + 13388281 = 79974^2 + 3659^2 .

It is a cyclic number.

It is not a de Polignac number, because 6409228957 - 2³¹ = 4261745309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6409228057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3204614478 + 3204614479.

It is an arithmetic number, because the mean of its divisors is an integer number (3204614479).

Almost surely, 2^6409228957 is an apocalyptic number.

It is an amenable number.

6409228957 is a deficient number, since it is larger than the sum of its proper divisors (1).

6409228957 is an equidigital number, since it uses as much as digits as its factorization.

6409228957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The square root of 6409228957 is about 80057.6602018820. The cubic root of 6409228957 is about 1857.5275428109.

The spelling of 6409228957 in words is "six billion, four hundred nine million, two hundred twenty-eight thousand, nine hundred fifty-seven".