6887859157 has 8 divisors (see below), whose sum is σ = 7320772160. Its totient is φ = 6461985600.

The previous prime is 6887859149. The next prime is 6887859163. The reversal of 6887859157 is 7519587886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6887859157 - 2³ = 6887859149 is a prime.

It is a super-3 number, since 3×6887859157³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6887859257) 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 7 ways as a sum of consecutive naturals, for example, 1757844 + ... + 1761757.

It is an arithmetic number, because the mean of its divisors is an integer number (915096520).

Almost surely, 2^6887859157 is an apocalyptic number.

It is an amenable number.

6887859157 is a deficient number, since it is larger than the sum of its proper divisors (432913003).

6887859157 is a wasteful number, since it uses less digits than its factorization.

6887859157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3519723.

The product of its digits is 33868800, while the sum is 64.

The square root of 6887859157 is about 82993.1271672540. The cubic root of 6887859157 is about 1902.6610135270.

The spelling of 6887859157 in words is "six billion, eight hundred eighty-seven million, eight hundred fifty-nine thousand, one hundred fifty-seven".