2513164043778 has 16 divisors (see below), whose sum is σ = 5111520089760. Its totient is φ = 823522680896.

The previous prime is 2513164043771. The next prime is 2513164043809. The reversal of 2513164043778 is 8773404613152.

It is a self number, because there is not a number n which added to its sum of digits gives 2513164043778.

It is not an unprimeable number, because it can be changed into a prime (2513164043771) 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, 3549666375 + ... + 3549667082.

It is an arithmetic number, because the mean of its divisors is an integer number (319470005610).

Almost surely, 2^{2513164043778} is an apocalyptic number.

2513164043778 is an abundant number, since it is smaller than the sum of its proper divisors (2598356045982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2513164043778 is a wasteful number, since it uses less digits than its factorization.

2513164043778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7099333521.

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 2513164043778 in words is "two trillion, five hundred thirteen billion, one hundred sixty-four million, forty-three thousand, seven hundred seventy-eight".