2538849769 has 3 divisors (see below), whose sum is σ = 2538900157. Its totient is φ = 2538799382.

The previous prime is 2538849763. The next prime is 2538849791. The reversal of 2538849769 is 9679488352.

The square root of 2538849769 is 50387.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 2538849769 - 2²³ = 2530461161 is a prime.

It is a super-2 number, since 2×2538849769² = 12891516299102706722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2538849763) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 25194 + ... + 75580.

Almost surely, 2^2538849769 is an apocalyptic number.

2538849769 is the 50387-th square number.

2538849769 is the 25194-th centered octagonal number.

It is an amenable number.

2538849769 is a deficient number, since it is larger than the sum of its proper divisors (50388).

2538849769 is an frugal number, since it uses more digits than its factorization.

2538849769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100774 (or 50387 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 61.

The cubic root of 2538849769 is about 1364.2030025614.

It can be divided in two parts, 25388 and 49769, that added together give a palindrome (75157).

The spelling of 2538849769 in words is "two billion, five hundred thirty-eight million, eight hundred forty-nine thousand, seven hundred sixty-nine".