2538616365693 has 16 divisors (see below), whose sum is σ = 3777778224640. Its totient is φ = 1684821619872.

The previous prime is 2538616365689. The next prime is 2538616365737. The reversal of 2538616365693 is 3965636168352.

2538616365693 is a `hidden beast` number, since 2 + 5 + 3 + 8 + 6 + 1 + 63 + 6 + 569 + 3 = 666.

2538616365693 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 2538616365693 - 2² = 2538616365689 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2538616365693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2538616365793) 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, 210807496 + ... + 210819537.

It is an arithmetic number, because the mean of its divisors is an integer number (236111139040).

Almost surely, 2^{2538616365693} is an apocalyptic number.

It is an amenable number.

2538616365693 is a deficient number, since it is larger than the sum of its proper divisors (1239161858947).

2538616365693 is a wasteful number, since it uses less digits than its factorization.

2538616365693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421627265 (or 421627259 counting only the distinct ones).

The product of its digits is 125971200, while the sum is 63.

The spelling of 2538616365693 in words is "two trillion, five hundred thirty-eight billion, six hundred sixteen million, three hundred sixty-five thousand, six hundred ninety-three".