7524865961 has 2 divisors, whose sum is σ = 7524865962. Its totient is φ = 7524865960.

The previous prime is 7524865939. The next prime is 7524865987. The reversal of 7524865961 is 1695684257.

7524865961 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7523827600 + 1038361 = 86740^2 + 1019^2 .

It is a cyclic number.

It is not a de Polignac number, because 7524865961 - 2⁶ = 7524865897 is a prime.

It is a super-3 number, since 3×7524865961³ (a number of 31 digits) contains 333 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 (7524865661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3762432980 + 3762432981.

It is an arithmetic number, because the mean of its divisors is an integer number (3762432981).

Almost surely, 2^7524865961 is an apocalyptic number.

It is an amenable number.

7524865961 is a deficient number, since it is larger than the sum of its proper divisors (1).

7524865961 is an equidigital number, since it uses as much as digits as its factorization.

7524865961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 53.

The square root of 7524865961 is about 86745.9852730949. The cubic root of 7524865961 is about 1959.5946997057.

The spelling of 7524865961 in words is "seven billion, five hundred twenty-four million, eight hundred sixty-five thousand, nine hundred sixty-one".