2634545889 has 12 divisors (see below), whose sum is σ = 3877256916. Its totient is φ = 1723224672.

The previous prime is 2634545831. The next prime is 2634545917. The reversal of 2634545889 is 9885454362.

2634545889 is a `hidden beast` number, since 2 + 6 + 3 + 4 + 54 + 588 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1253160000 + 1381385889 = 35400^2 + 37167^2 .

It is not a de Polignac number, because 2634545889 - 2¹⁶ = 2634480353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2634545489) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2761102 + ... + 2762055.

It is an arithmetic number, because the mean of its divisors is an integer number (323104743).

Almost surely, 2^2634545889 is an apocalyptic number.

It is an amenable number.

2634545889 is a deficient number, since it is larger than the sum of its proper divisors (1242711027).

2634545889 is a wasteful number, since it uses less digits than its factorization.

2634545889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5523216 (or 5523213 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 54.

The square root of 2634545889 is about 51327.8276279057. The cubic root of 2634545889 is about 1381.1322166950.

The spelling of 2634545889 in words is "two billion, six hundred thirty-four million, five hundred forty-five thousand, eight hundred eighty-nine".