2642397569 has 16 divisors (see below), whose sum is σ = 3086563200. Its totient is φ = 2261201040.

The previous prime is 2642397559. The next prime is 2642397581. The reversal of 2642397569 is 9657932462.

It is a de Polignac number, because none of the positive numbers 2^k-2642397569 is a prime.

It is a super-2 number, since 2×2642397569² = 13964529825314219522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2642397569.

It is not an unprimeable number, because it can be changed into a prime (2642397509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214559 + ... + 226539.

It is an arithmetic number, because the mean of its divisors is an integer number (192910200).

Almost surely, 2^2642397569 is an apocalyptic number.

It is an amenable number.

2642397569 is a deficient number, since it is larger than the sum of its proper divisors (444165631).

2642397569 is an equidigital number, since it uses as much as digits as its factorization.

2642397569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12645 (or 12631 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 53.

The square root of 2642397569 is about 51404.2563315529. The cubic root of 2642397569 is about 1382.5029087158.

The spelling of 2642397569 in words is "two billion, six hundred forty-two million, three hundred ninety-seven thousand, five hundred sixty-nine".