2649132663 has 16 divisors (see below), whose sum is σ = 3730164480. Its totient is φ = 1668945344.

The previous prime is 2649132659. The next prime is 2649132671. The reversal of 2649132663 is 3662319462.

It is a cyclic number.

It is not a de Polignac number, because 2649132663 - 2² = 2649132659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2649132653) 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, 225558 + ... + 237011.

It is an arithmetic number, because the mean of its divisors is an integer number (233135280).

Almost surely, 2^2649132663 is an apocalyptic number.

2649132663 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2649132663 is a deficient number, since it is larger than the sum of its proper divisors (1081031817).

2649132663 is a wasteful number, since it uses less digits than its factorization.

2649132663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462678.

The product of its digits is 279936, while the sum is 42.

The square root of 2649132663 is about 51469.7256938484. The cubic root of 2649132663 is about 1383.6765129822.

The spelling of 2649132663 in words is "two billion, six hundred forty-nine million, one hundred thirty-two thousand, six hundred sixty-three".