7524772961 has 2 divisors, whose sum is σ = 7524772962. Its totient is φ = 7524772960.

The previous prime is 7524772811. The next prime is 7524773027. The reversal of 7524772961 is 1692774257.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7420099600 + 104673361 = 86140^2 + 10231^2 .

It is a cyclic number.

It is not a de Polignac number, because 7524772961 - 2²² = 7520578657 is a prime.

It is a super-2 number, since 2×7524772961² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (7524772561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3762386480 + 3762386481.

It is an arithmetic number, because the mean of its divisors is an integer number (3762386481).

Almost surely, 2^7524772961 is an apocalyptic number.

It is an amenable number.

7524772961 is a deficient number, since it is larger than the sum of its proper divisors (1).

7524772961 is an equidigital number, since it uses as much as digits as its factorization.

7524772961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1481760, while the sum is 50.

The square root of 7524772961 is about 86745.4492235760. The cubic root of 7524772961 is about 1959.5866267798.

The spelling of 7524772961 in words is "seven billion, five hundred twenty-four million, seven hundred seventy-two thousand, nine hundred sixty-one".