2629647249 has 4 divisors (see below), whose sum is σ = 3506196336. Its totient is φ = 1753098164.

The previous prime is 2629647203. The next prime is 2629647263. The reversal of 2629647249 is 9427469262.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2629647249 - 2²⁸ = 2361211793 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2629647269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438274539 + ... + 438274544.

It is an arithmetic number, because the mean of its divisors is an integer number (876549084).

Almost surely, 2^2629647249 is an apocalyptic number.

It is an amenable number.

2629647249 is a deficient number, since it is larger than the sum of its proper divisors (876549087).

2629647249 is an equidigital number, since it uses as much as digits as its factorization.

2629647249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876549086.

The product of its digits is 2612736, while the sum is 51.

The square root of 2629647249 is about 51280.0862811287. The cubic root of 2629647249 is about 1380.2756658919.

The spelling of 2629647249 in words is "two billion, six hundred twenty-nine million, six hundred forty-seven thousand, two hundred forty-nine".