2615998913 has 16 divisors (see below), whose sum is σ = 3039192576. Its totient is φ = 2225322240.

The previous prime is 2615998871. The next prime is 2615998919. The reversal of 2615998913 is 3198995162.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2615998913 - 2⁶ = 2615998849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2615998919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8081 + ... + 72782.

It is an arithmetic number, because the mean of its divisors is an integer number (189949536).

Almost surely, 2^2615998913 is an apocalyptic number.

It is an amenable number.

2615998913 is a deficient number, since it is larger than the sum of its proper divisors (423193663).

2615998913 is a wasteful number, since it uses less digits than its factorization.

2615998913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81064.

The product of its digits is 1049760, while the sum is 53.

The square root of 2615998913 is about 51146.8367839107. The cubic root of 2615998913 is about 1377.8835640576.

The spelling of 2615998913 in words is "two billion, six hundred fifteen million, nine hundred ninety-eight thousand, nine hundred thirteen".