2649669463 has 12 divisors (see below), whose sum is σ = 3116905920. Its totient is φ = 2245623072.

The previous prime is 2649669443. The next prime is 2649669467. The reversal of 2649669463 is 3649669462.

It is not a de Polignac number, because 2649669463 - 2²¹ = 2647572311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2649669467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 299431 + ... + 308152.

It is an arithmetic number, because the mean of its divisors is an integer number (259742160).

Almost surely, 2^2649669463 is an apocalyptic number.

2649669463 is a deficient number, since it is larger than the sum of its proper divisors (467236457).

2649669463 is an equidigital number, since it uses as much as digits as its factorization.

2649669463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607686 (or 607679 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 55.

The square root of 2649669463 is about 51474.9401456670. The cubic root of 2649669463 is about 1383.7699658821.

Subtracting 2649669463 from its reverse (3649669462), we obtain a palindrome (999999999).

It can be divided in two parts, 26496 and 69463, that added together give a palindrome (95959).

The spelling of 2649669463 in words is "two billion, six hundred forty-nine million, six hundred sixty-nine thousand, four hundred sixty-three".