7617031961 has 16 divisors (see below), whose sum is σ = 9996380160. Its totient is φ = 5622961680.

The previous prime is 7617031921. The next prime is 7617031963. The reversal of 7617031961 is 1691307167.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-7617031961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7617031963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2601761 + ... + 2604686.

It is an arithmetic number, because the mean of its divisors is an integer number (624773760).

Almost surely, 2^7617031961 is an apocalyptic number.

It is an amenable number.

7617031961 is a deficient number, since it is larger than the sum of its proper divisors (2379348199).

7617031961 is a wasteful number, since it uses less digits than its factorization.

7617031961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5206484.

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 7617031961 is about 87275.6091986759. The cubic root of 7617031961 is about 1967.5627534049.

The spelling of 7617031961 in words is "seven billion, six hundred seventeen million, thirty-one thousand, nine hundred sixty-one".