2513147491965 has 64 divisors (see below), whose sum is σ = 4395683635200. Its totient is φ = 1215970402560.

The previous prime is 2513147491963. The next prime is 2513147491991. The reversal of 2513147491965 is 5691947413152.

2513147491965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2513147491965 - 2¹ = 2513147491963 is a prime.

It is a super-4 number, since 4×2513147491965⁴ (a number of 51 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2513147491963) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 241666836 + ... + 241677234.

It is an arithmetic number, because the mean of its divisors is an integer number (68682556800).

Almost surely, 2^{2513147491965} is an apocalyptic number.

It is an amenable number.

2513147491965 is a deficient number, since it is larger than the sum of its proper divisors (1882536143235).

2513147491965 is a wasteful number, since it uses less digits than its factorization.

2513147491965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13314.

The product of its digits is 8164800, while the sum is 57.

The spelling of 2513147491965 in words is "two trillion, five hundred thirteen billion, one hundred forty-seven million, four hundred ninety-one thousand, nine hundred sixty-five".