7961331697 has 16 divisors (see below), whose sum is σ = 8829370368. Its totient is φ = 7118128080.

The previous prime is 7961331673. The next prime is 7961331731.

7961331697 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 7961331697 - 2³¹ = 5813848049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7961331397) 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, 184048 + ... + 223150.

It is an arithmetic number, because the mean of its divisors is an integer number (551835648).

Almost surely, 2^7961331697 is an apocalyptic number.

It is an amenable number.

7961331697 is a deficient number, since it is larger than the sum of its proper divisors (868038671).

7961331697 is a wasteful number, since it uses less digits than its factorization.

7961331697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39420.

The product of its digits is 1285956, while the sum is 52.

The square root of 7961331697 is about 89226.2948743250. The cubic root of 7961331697 is about 1996.7724356326.

The spelling of 7961331697 in words is "seven billion, nine hundred sixty-one million, three hundred thirty-one thousand, six hundred ninety-seven".