2489906769 has 16 divisors (see below), whose sum is σ = 3865732992. Its totient is φ = 1395957888.

The previous prime is 2489906767. The next prime is 2489906779. The reversal of 2489906769 is 9676099842.

It is not a de Polignac number, because 2489906769 - 2¹ = 2489906767 is a prime.

It is a super-2 number, since 2×2489906769² = 12399271436624038722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2489906767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1117444 + ... + 1119669.

It is an arithmetic number, because the mean of its divisors is an integer number (241608312).

Almost surely, 2^2489906769 is an apocalyptic number.

It is an amenable number.

2489906769 is a deficient number, since it is larger than the sum of its proper divisors (1375826223).

2489906769 is a wasteful number, since it uses less digits than its factorization.

2489906769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2237176.

The product of its (nonzero) digits is 11757312, while the sum is 60.

The square root of 2489906769 is about 49898.9656105214. The cubic root of 2489906769 is about 1355.3798618185.

The spelling of 2489906769 in words is "two billion, four hundred eighty-nine million, nine hundred six thousand, seven hundred sixty-nine".