2513399663 has 8 divisors (see below), whose sum is σ = 2661949008. Its totient is φ = 2364928384.

The previous prime is 2513399641. The next prime is 2513399711. The reversal of 2513399663 is 3669933152.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2513399663 - 2¹² = 2513395567 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 (2513309663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54920 + ... + 89682.

It is an arithmetic number, because the mean of its divisors is an integer number (332743626).

Almost surely, 2^2513399663 is an apocalyptic number.

2513399663 is a deficient number, since it is larger than the sum of its proper divisors (148549345).

2513399663 is a wasteful number, since it uses less digits than its factorization.

2513399663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39033.

The product of its digits is 787320, while the sum is 47.

The square root of 2513399663 is about 50133.8175586101. The cubic root of 2513399663 is about 1359.6293076713.

The spelling of 2513399663 in words is "two billion, five hundred thirteen million, three hundred ninety-nine thousand, six hundred sixty-three".