7947265559 has 2 divisors, whose sum is σ = 7947265560. Its totient is φ = 7947265558.

The previous prime is 7947265511. The next prime is 7947265561. The reversal of 7947265559 is 9555627497.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7947265559 - 2²⁰ = 7946216983 is a prime.

Together with 7947265561, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 7947265498 and 7947265507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7947265159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3973632779 + 3973632780.

It is an arithmetic number, because the mean of its divisors is an integer number (3973632780).

Almost surely, 2^7947265559 is an apocalyptic number.

7947265559 is a deficient number, since it is larger than the sum of its proper divisors (1).

7947265559 is an equidigital number, since it uses as much as digits as its factorization.

7947265559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23814000, while the sum is 59.

The square root of 7947265559 is about 89147.4371981607. The cubic root of 7947265559 is about 1995.5957717559.

The spelling of 7947265559 in words is "seven billion, nine hundred forty-seven million, two hundred sixty-five thousand, five hundred fifty-nine".