2649913744 has 40 divisors (see below), whose sum is σ = 5347035000. Its totient is φ = 1270649856.

The previous prime is 2649913729. The next prime is 2649913751. The reversal of 2649913744 is 4473199462.

It can be written as a sum of positive squares in 4 ways, for example, as 80640400 + 2569273344 = 8980^2 + 50688^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49972 + ... + 88300.

It is an arithmetic number, because the mean of its divisors is an integer number (133675875).

Almost surely, 2^2649913744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2649913744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2673517500).

2649913744 is an abundant number, since it is smaller than the sum of its proper divisors (2697121256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2649913744 is a wasteful number, since it uses less digits than its factorization.

2649913744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38515 (or 38509 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 49.

The square root of 2649913744 is about 51477.3129057840. The cubic root of 2649913744 is about 1383.8124892142.

The spelling of 2649913744 in words is "two billion, six hundred forty-nine million, nine hundred thirteen thousand, seven hundred forty-four".