2497889989 has 8 divisors (see below), whose sum is σ = 2869078400. Its totient is φ = 2130288336.

The previous prime is 2497889987. The next prime is 2497890061. The reversal of 2497889989 is 9899887942.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2497889989 - 2¹ = 2497889987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2497889987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 895194 + ... + 897979.

It is an arithmetic number, because the mean of its divisors is an integer number (358634800).

Almost surely, 2^2497889989 is an apocalyptic number.

It is an amenable number.

2497889989 is a deficient number, since it is larger than the sum of its proper divisors (371188411).

2497889989 is a wasteful number, since it uses less digits than its factorization.

2497889989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793379.

The product of its digits is 188116992, while the sum is 73.

The square root of 2497889989 is about 49978.8954359738. The cubic root of 2497889989 is about 1356.8268707563.

The spelling of 2497889989 in words is "two billion, four hundred ninety-seven million, eight hundred eighty-nine thousand, nine hundred eighty-nine".