245987472989 has 8 divisors (see below), whose sum is σ = 246806609280. Its totient is φ = 245168453376.

The previous prime is 245987472961. The next prime is 245987473031. The reversal of 245987472989 is 989274789542.

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 245987472989 - 2¹⁶ = 245987407453 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 (245987472949) 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, 6932477 + ... + 6967869.

It is an arithmetic number, because the mean of its divisors is an integer number (30850826160).

Almost surely, 2^245987472989 is an apocalyptic number.

It is an amenable number.

245987472989 is a deficient number, since it is larger than the sum of its proper divisors (819136291).

245987472989 is a wasteful number, since it uses less digits than its factorization.

245987472989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58339.

The product of its digits is 731566080, while the sum is 74.

The spelling of 245987472989 in words is "two hundred forty-five billion, nine hundred eighty-seven million, four hundred seventy-two thousand, nine hundred eighty-nine".