6837790661 has 16 divisors (see below), whose sum is σ = 7960848000. Its totient is φ = 5817987648.

The previous prime is 6837790637. The next prime is 6837790667. The reversal of 6837790661 is 1660977386.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6837790661 is a prime.

It is a super-2 number, since 2×6837790661² = 93510762247317633842, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6837790667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 364961 + ... + 383238.

It is an arithmetic number, because the mean of its divisors is an integer number (497553000).

Almost surely, 2^6837790661 is an apocalyptic number.

It is an amenable number.

6837790661 is a deficient number, since it is larger than the sum of its proper divisors (1123057339).

6837790661 is a wasteful number, since it uses less digits than its factorization.

6837790661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748268.

The product of its (nonzero) digits is 2286144, while the sum is 53.

The square root of 6837790661 is about 82690.9345756837. The cubic root of 6837790661 is about 1898.0395902362.

The spelling of 6837790661 in words is "six billion, eight hundred thirty-seven million, seven hundred ninety thousand, six hundred sixty-one".