6904571157 has 12 divisors (see below), whose sum is σ = 10879930464. Its totient is φ = 4184588520.

The previous prime is 6904571153. The next prime is 6904571159. The reversal of 6904571157 is 7511754096.

6904571157 is a `hidden beast` number, since 69 + 0 + 4 + 571 + 15 + 7 = 666.

It is not a de Polignac number, because 6904571157 - 2² = 6904571153 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6904571153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34871473 + ... + 34871670.

It is an arithmetic number, because the mean of its divisors is an integer number (906660872).

Almost surely, 2^6904571157 is an apocalyptic number.

It is an amenable number.

6904571157 is a deficient number, since it is larger than the sum of its proper divisors (3975359307).

6904571157 is a wasteful number, since it uses less digits than its factorization.

6904571157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69743160 (or 69743157 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 45.

The square root of 6904571157 is about 83093.7492053403. The cubic root of 6904571157 is about 1904.1985783053.

The spelling of 6904571157 in words is "six billion, nine hundred four million, five hundred seventy-one thousand, one hundred fifty-seven".