6468971157 has 12 divisors (see below), whose sum is σ = 10193530464. Its totient is φ = 3920588520.

The previous prime is 6468971153. The next prime is 6468971167. The reversal of 6468971157 is 7511798646.

It is not a de Polignac number, because 6468971157 - 2² = 6468971153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6468971153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32671473 + ... + 32671670.

It is an arithmetic number, because the mean of its divisors is an integer number (849460872).

Almost surely, 2^6468971157 is an apocalyptic number.

It is an amenable number.

6468971157 is a deficient number, since it is larger than the sum of its proper divisors (3724559307).

6468971157 is a wasteful number, since it uses less digits than its factorization.

6468971157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65343160 (or 65343157 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 54.

The square root of 6468971157 is about 80429.9145654153. The cubic root of 6468971157 is about 1863.2812122230.

The spelling of 6468971157 in words is "six billion, four hundred sixty-eight million, nine hundred seventy-one thousand, one hundred fifty-seven".