6761289997 has 32 divisors (see below), whose sum is σ = 8933379840. Its totient is φ = 4954260480.

The previous prime is 6761289991. The next prime is 6761290009. The reversal of 6761289997 is 7999821676.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6761289997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6761289991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2927079 + ... + 2929387.

It is an arithmetic number, because the mean of its divisors is an integer number (279168120).

Almost surely, 2^6761289997 is an apocalyptic number.

It is an amenable number.

6761289997 is a deficient number, since it is larger than the sum of its proper divisors (2172089843).

6761289997 is a wasteful number, since it uses less digits than its factorization.

6761289997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4581.

The product of its digits is 20575296, while the sum is 64.

The square root of 6761289997 is about 82227.0636530334. The cubic root of 6761289997 is about 1890.9346549635.

It can be divided in two parts, 67612 and 89997, that added together give a square (157609 = 397²).

The spelling of 6761289997 in words is "six billion, seven hundred sixty-one million, two hundred eighty-nine thousand, nine hundred ninety-seven".