6111931689 has 6 divisors (see below), whose sum is σ = 8828345786. Its totient is φ = 4074621120.

The previous prime is 6111931669. The next prime is 6111931739. The reversal of 6111931689 is 9861391116.

6111931689 is a `hidden beast` number, since 611 + 19 + 3 + 16 + 8 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4096640025 + 2015291664 = 64005^2 + 44892^2 .

It is not a de Polignac number, because 6111931689 - 2²⁵ = 6078377257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6111931669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 339551752 + ... + 339551769.

Almost surely, 2^6111931689 is an apocalyptic number.

It is an amenable number.

6111931689 is a deficient number, since it is larger than the sum of its proper divisors (2716414097).

6111931689 is a wasteful number, since it uses less digits than its factorization.

6111931689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679103527 (or 679103524 counting only the distinct ones).

The product of its digits is 69984, while the sum is 45.

The square root of 6111931689 is about 78178.8442546959. The cubic root of 6111931689 is about 1828.3506782572.

The spelling of 6111931689 in words is "six billion, one hundred eleven million, nine hundred thirty-one thousand, six hundred eighty-nine".