7745132961 has 12 divisors (see below), whose sum is σ = 11425444992. Its totient is φ = 5053561656.

The previous prime is 7745132957. The next prime is 7745132981. The reversal of 7745132961 is 1692315477.

7745132961 is a `hidden beast` number, since 7 + 74 + 513 + 2 + 9 + 61 = 666.

It is not a de Polignac number, because 7745132961 - 2² = 7745132957 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7745132951) 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 11 ways as a sum of consecutive naturals, for example, 9154581 + ... + 9155426.

It is an arithmetic number, because the mean of its divisors is an integer number (952120416).

Almost surely, 2^7745132961 is an apocalyptic number.

It is an amenable number.

7745132961 is a deficient number, since it is larger than the sum of its proper divisors (3680312031).

7745132961 is a wasteful number, since it uses less digits than its factorization.

7745132961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18310060 (or 18310057 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 7745132961 is about 88006.4370429800. The cubic root of 7745132961 is about 1978.5314554489.

The spelling of 7745132961 in words is "seven billion, seven hundred forty-five million, one hundred thirty-two thousand, nine hundred sixty-one".