7427125961 has 2 divisors, whose sum is σ = 7427125962. Its totient is φ = 7427125960.

The previous prime is 7427125931. The next prime is 7427126017. The reversal of 7427125961 is 1695217247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5984569600 + 1442556361 = 77360^2 + 37981^2 .

It is a cyclic number.

It is not a de Polignac number, because 7427125961 - 2¹⁸ = 7426863817 is a prime.

It is not a weakly prime, because it can be changed into another prime (7427125931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3713562980 + 3713562981.

It is an arithmetic number, because the mean of its divisors is an integer number (3713562981).

Almost surely, 2^7427125961 is an apocalyptic number.

It is an amenable number.

7427125961 is a deficient number, since it is larger than the sum of its proper divisors (1).

7427125961 is an equidigital number, since it uses as much as digits as its factorization.

7427125961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 44.

The square root of 7427125961 is about 86180.7748920837. The cubic root of 7427125961 is about 1951.0733482460.

The spelling of 7427125961 in words is "seven billion, four hundred twenty-seven million, one hundred twenty-five thousand, nine hundred sixty-one".