2538202689 has 32 divisors (see below), whose sum is σ = 4131724800. Its totient is φ = 1527212880.

The previous prime is 2538202687. The next prime is 2538202721. The reversal of 2538202689 is 9862028352.

It is a happy number.

2538202689 is a `hidden beast` number, since 2 + 5 + 382 + 0 + 268 + 9 = 666.

It is not a de Polignac number, because 2538202689 - 2¹ = 2538202687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2538202687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10542 + ... + 72024.

It is an arithmetic number, because the mean of its divisors is an integer number (129116400).

Almost surely, 2^2538202689 is an apocalyptic number.

It is an amenable number.

2538202689 is a deficient number, since it is larger than the sum of its proper divisors (1593522111).

2538202689 is a wasteful number, since it uses less digits than its factorization.

2538202689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61642 (or 61636 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 2538202689 is about 50380.5784901285. The cubic root of 2538202689 is about 1364.0870939721.

The spelling of 2538202689 in words is "two billion, five hundred thirty-eight million, two hundred two thousand, six hundred eighty-nine".