9613525819 has 2 divisors, whose sum is σ = 9613525820. Its totient is φ = 9613525818.

The previous prime is 9613525813. The next prime is 9613525849. The reversal of 9613525819 is 9185253169.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9613525819 - 2³ = 9613525811 is a prime.

It is a super-2 number, since 2×9613525819² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9613525811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4806762909 + 4806762910.

It is an arithmetic number, because the mean of its divisors is an integer number (4806762910).

Almost surely, 2^9613525819 is an apocalyptic number.

9613525819 is a deficient number, since it is larger than the sum of its proper divisors (1).

9613525819 is an equidigital number, since it uses as much as digits as its factorization.

9613525819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 583200, while the sum is 49.

The square root of 9613525819 is about 98048.5890719494. The cubic root of 9613525819 is about 2126.3148176959.

The spelling of 9613525819 in words is "nine billion, six hundred thirteen million, five hundred twenty-five thousand, eight hundred nineteen".