6911109157 has 8 divisors (see below), whose sum is σ = 6922660320. Its totient is φ = 6899570160.

The previous prime is 6911109151. The next prime is 6911109169. The reversal of 6911109157 is 7519011196.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6911109157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6911109151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2293782 + ... + 2296792.

It is an arithmetic number, because the mean of its divisors is an integer number (865332540).

Almost surely, 2^6911109157 is an apocalyptic number.

It is an amenable number.

6911109157 is a deficient number, since it is larger than the sum of its proper divisors (11551163).

6911109157 is a wasteful number, since it uses less digits than its factorization.

6911109157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6083.

The product of its (nonzero) digits is 17010, while the sum is 40.

The square root of 6911109157 is about 83133.0810026911. The cubic root of 6911109157 is about 1904.7994229016.

The spelling of 6911109157 in words is "six billion, nine hundred eleven million, one hundred nine thousand, one hundred fifty-seven".