2389551249609 has 6 divisors (see below), whose sum is σ = 3451574027226. Its totient is φ = 1593034166400.

The previous prime is 2389551249601. The next prime is 2389551249623. The reversal of 2389551249609 is 9069421559832.

2389551249609 is a `hidden beast` number, since 2 + 3 + 8 + 9 + 5 + 5 + 12 + 4 + 9 + 609 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1411351128009 + 978200121600 = 1188003^2 + 989040^2 .

It is not a de Polignac number, because 2389551249609 - 2³ = 2389551249601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2389551249601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 132752847192 + ... + 132752847209.

It is an arithmetic number, because the mean of its divisors is an integer number (575262337871).

Almost surely, 2^{2389551249609} is an apocalyptic number.

It is an amenable number.

2389551249609 is a deficient number, since it is larger than the sum of its proper divisors (1062022777617).

2389551249609 is a wasteful number, since it uses less digits than its factorization.

2389551249609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265505694407 (or 265505694404 counting only the distinct ones).

The product of its (nonzero) digits is 41990400, while the sum is 63.

The spelling of 2389551249609 in words is "two trillion, three hundred eighty-nine billion, five hundred fifty-one million, two hundred forty-nine thousand, six hundred nine".