2499591464 has 16 divisors (see below), whose sum is σ = 4962424500. Its totient is φ = 1176278272.

The previous prime is 2499591431. The next prime is 2499591469. The reversal of 2499591464 is 4641959942.

It can be written as a sum of positive squares in 2 ways, for example, as 2415722500 + 83868964 = 49150^2 + 9158^2 .

It is not an unprimeable number, because it can be changed into a prime (2499591469) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9189539 + ... + 9189810.

Almost surely, 2^2499591464 is an apocalyptic number.

It is an amenable number.

2499591464 is a deficient number, since it is larger than the sum of its proper divisors (2462833036).

2499591464 is a wasteful number, since it uses less digits than its factorization.

2499591464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18379372 (or 18379368 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 53.

The square root of 2499591464 is about 49995.9144730847. The cubic root of 2499591464 is about 1357.1348751157.

The spelling of 2499591464 in words is "two billion, four hundred ninety-nine million, five hundred ninety-one thousand, four hundred sixty-four".