2455818989 has 8 divisors (see below), whose sum is σ = 2783924640. Its totient is φ = 2147598576.

The previous prime is 2455818979. The next prime is 2455819013. The reversal of 2455818989 is 9898185542.

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

It is not a de Polignac number, because 2455818989 - 2⁴ = 2455818973 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 (2455818979) 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, 4971047 + ... + 4971540.

It is an arithmetic number, because the mean of its divisors is an integer number (347990580).

Almost surely, 2^2455818989 is an apocalyptic number.

It is an amenable number.

2455818989 is a deficient number, since it is larger than the sum of its proper divisors (328105651).

2455818989 is a wasteful number, since it uses less digits than its factorization.

2455818989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9942619.

The product of its digits is 8294400, while the sum is 59.

The square root of 2455818989 is about 49556.2204874423. The cubic root of 2455818989 is about 1349.1661955004.

The spelling of 2455818989 in words is "two billion, four hundred fifty-five million, eight hundred eighteen thousand, nine hundred eighty-nine".