6405364157 has 2 divisors, whose sum is σ = 6405364158. Its totient is φ = 6405364156.

The previous prime is 6405364153. The next prime is 6405364213. The reversal of 6405364157 is 7514635046.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3582142201 + 2823221956 = 59851^2 + 53134^2 .

It is a cyclic number.

It is not a de Polignac number, because 6405364157 - 2² = 6405364153 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6405364153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3202682078 + 3202682079.

It is an arithmetic number, because the mean of its divisors is an integer number (3202682079).

Almost surely, 2^6405364157 is an apocalyptic number.

It is an amenable number.

6405364157 is a deficient number, since it is larger than the sum of its proper divisors (1).

6405364157 is an equidigital number, since it uses as much as digits as its factorization.

6405364157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 41.

The square root of 6405364157 is about 80033.5189592461. The cubic root of 6405364157 is about 1857.1541013270.

The spelling of 6405364157 in words is "six billion, four hundred five million, three hundred sixty-four thousand, one hundred fifty-seven".