2040781872613 has 16 divisors (see below), whose sum is σ = 2228381280000. Its totient is φ = 1853528935680.

The previous prime is 2040781872527. The next prime is 2040781872667. The reversal of 2040781872613 is 3162781870402.

It is a cyclic number.

It is not a de Polignac number, because 2040781872613 - 2³⁷ = 1903342919141 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 (2040781072613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54360033 + ... + 54397561.

It is an arithmetic number, because the mean of its divisors is an integer number (139273830000).

Almost surely, 2^{2040781872613} is an apocalyptic number.

It is an amenable number.

2040781872613 is a deficient number, since it is larger than the sum of its proper divisors (187599407387).

2040781872613 is a wasteful number, since it uses less digits than its factorization.

2040781872613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42012.

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 2040781872613 in words is "two trillion, forty billion, seven hundred eighty-one million, eight hundred seventy-two thousand, six hundred thirteen".