900449068239 has 24 divisors (see below), whose sum is σ = 1506818017952. Its totient is φ = 507493797120.

The previous prime is 900449068231. The next prime is 900449068261. The reversal of 900449068239 is 932860944009.

900449068239 is a `hidden beast` number, since 90 + 0 + 4 + 490 + 68 + 2 + 3 + 9 = 666.

It is not a de Polignac number, because 900449068239 - 2³ = 900449068231 is a prime.

It is a super-2 number, since 2×900449068239² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900449068231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97891582 + ... + 97900779.

Almost surely, 2^900449068239 is an apocalyptic number.

900449068239 is a deficient number, since it is larger than the sum of its proper divisors (606368949713).

900449068239 is a wasteful number, since it uses less digits than its factorization.

900449068239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195792447 (or 195792444 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 900449068239 in words is "nine hundred billion, four hundred forty-nine million, sixty-eight thousand, two hundred thirty-nine".