7961432159 has 2 divisors, whose sum is σ = 7961432160. Its totient is φ = 7961432158.

The previous prime is 7961432123. The next prime is 7961432207. The reversal of 7961432159 is 9512341697.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7961432159 - 2²⁴ = 7944654943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7961432119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3980716079 + 3980716080.

It is an arithmetic number, because the mean of its divisors is an integer number (3980716080).

Almost surely, 2^7961432159 is an apocalyptic number.

7961432159 is a deficient number, since it is larger than the sum of its proper divisors (1).

7961432159 is an equidigital number, since it uses as much as digits as its factorization.

7961432159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 47.

The square root of 7961432159 is about 89226.8578343987. The cubic root of 7961432159 is about 1996.7808345168.

The spelling of 7961432159 in words is "seven billion, nine hundred sixty-one million, four hundred thirty-two thousand, one hundred fifty-nine".