6859492157 has 16 divisors (see below), whose sum is σ = 8271782400. Its totient is φ = 5556774960.

The previous prime is 6859492153. The next prime is 6859492201. The reversal of 6859492157 is 7512949586.

It is not a de Polignac number, because 6859492157 - 2² = 6859492153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6859492153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5819 + ... + 117272.

It is an arithmetic number, because the mean of its divisors is an integer number (516986400).

Almost surely, 2^6859492157 is an apocalyptic number.

It is an amenable number.

6859492157 is a deficient number, since it is larger than the sum of its proper divisors (1412290243).

6859492157 is a wasteful number, since it uses less digits than its factorization.

6859492157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123536.

The product of its digits is 5443200, while the sum is 56.

The square root of 6859492157 is about 82822.0511518521. The cubic root of 6859492157 is about 1900.0454427728.

The spelling of 6859492157 in words is "six billion, eight hundred fifty-nine million, four hundred ninety-two thousand, one hundred fifty-seven".