6976868137 has 4 divisors (see below), whose sum is σ = 6977035600. Its totient is φ = 6976700676.

The previous prime is 6976868123. The next prime is 6976868159. The reversal of 6976868137 is 7318686796.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6976868137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6976868167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33118 + ... + 122680.

It is an arithmetic number, because the mean of its divisors is an integer number (1744258900).

Almost surely, 2^6976868137 is an apocalyptic number.

It is an amenable number.

6976868137 is a deficient number, since it is larger than the sum of its proper divisors (167463).

6976868137 is an equidigital number, since it uses as much as digits as its factorization.

6976868137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167462.

The product of its digits is 18289152, while the sum is 61.

The square root of 6976868137 is about 83527.6489373429. The cubic root of 6976868137 is about 1910.8217307011.

The spelling of 6976868137 in words is "six billion, nine hundred seventy-six million, eight hundred sixty-eight thousand, one hundred thirty-seven".