6811974755 has 32 divisors (see below), whose sum is σ = 8430912000. Its totient is φ = 5281765632.

The previous prime is 6811974727. The next prime is 6811974769. The reversal of 6811974755 is 5574791186.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6811974755 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6811974697 and 6811974706.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11371946 + ... + 11372544.

It is an arithmetic number, because the mean of its divisors is an integer number (263466000).

Almost surely, 2^6811974755 is an apocalyptic number.

6811974755 is a deficient number, since it is larger than the sum of its proper divisors (1618937245).

6811974755 is a wasteful number, since it uses less digits than its factorization.

6811974755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163.

The product of its digits is 2116800, while the sum is 53.

The square root of 6811974755 is about 82534.6881922989. The cubic root of 6811974755 is about 1895.6479109474.

The spelling of 6811974755 in words is "six billion, eight hundred eleven million, nine hundred seventy-four thousand, seven hundred fifty-five".