2515343649 has 32 divisors (see below), whose sum is σ = 4155513600. Its totient is φ = 1317848832.

The previous prime is 2515343639. The next prime is 2515343653. The reversal of 2515343649 is 9463435152.

It is not a de Polignac number, because 2515343649 - 2⁵ = 2515343617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2515343649.

It is not an unprimeable number, because it can be changed into a prime (2515343639) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9759 + ... + 71595.

It is an arithmetic number, because the mean of its divisors is an integer number (129859800).

Almost surely, 2^2515343649 is an apocalyptic number.

It is an amenable number.

2515343649 is a deficient number, since it is larger than the sum of its proper divisors (1640169951).

2515343649 is a wasteful number, since it uses less digits than its factorization.

2515343649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62009.

The product of its digits is 388800, while the sum is 42.

The square root of 2515343649 is about 50153.2017821395. The cubic root of 2515343649 is about 1359.9797518972.

The spelling of 2515343649 in words is "two billion, five hundred fifteen million, three hundred forty-three thousand, six hundred forty-nine".