7961432125 has 8 divisors (see below), whose sum is σ = 9935867448. Its totient is φ = 6369145600.

The previous prime is 7961432123. The next prime is 7961432159. The reversal of 7961432125 is 5212341697.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8538084 + 7952894041 = 2922^2 + 89179^2 .

It is not a de Polignac number, because 7961432125 - 2¹ = 7961432123 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7961432123) 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 7 ways as a sum of consecutive naturals, for example, 31845604 + ... + 31845853.

It is an arithmetic number, because the mean of its divisors is an integer number (1241983431).

Almost surely, 2^7961432125 is an apocalyptic number.

It is an amenable number.

7961432125 is a deficient number, since it is larger than the sum of its proper divisors (1974435323).

7961432125 is an equidigital number, since it uses as much as digits as its factorization.

7961432125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63691472 (or 63691462 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 7961432125 is about 89226.8576438731. The cubic root of 7961432125 is about 1996.7808316743.

The spelling of 7961432125 in words is "seven billion, nine hundred sixty-one million, four hundred thirty-two thousand, one hundred twenty-five".