7637736961 has 2 divisors, whose sum is σ = 7637736962. Its totient is φ = 7637736960.

The previous prime is 7637736943. The next prime is 7637736991. The reversal of 7637736961 is 1696377367.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7078698225 + 559038736 = 84135^2 + 23644^2 .

It is a cyclic number.

It is not a de Polignac number, because 7637736961 - 2²⁵ = 7604182529 is a prime.

It is a super-3 number, since 3×7637736961³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (7637736991) 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 as a sum of consecutive naturals, namely, 3818868480 + 3818868481.

It is an arithmetic number, because the mean of its divisors is an integer number (3818868481).

Almost surely, 2^7637736961 is an apocalyptic number.

It is an amenable number.

7637736961 is a deficient number, since it is larger than the sum of its proper divisors (1).

7637736961 is an equidigital number, since it uses as much as digits as its factorization.

7637736961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6001128, while the sum is 55.

The square root of 7637736961 is about 87394.1471781721. The cubic root of 7637736961 is about 1969.3439165614.

The spelling of 7637736961 in words is "seven billion, six hundred thirty-seven million, seven hundred thirty-six thousand, nine hundred sixty-one".