2989642635 has 192 divisors, whose sum is σ = 6513868800. Its totient is φ = 1295481600.

The previous prime is 2989642613. The next prime is 2989642637. The reversal of 2989642635 is 5362469892.

It is a happy number.

2989642635 is a `hidden beast` number, since 298 + 96 + 4 + 263 + 5 = 666.

It is not a de Polignac number, because 2989642635 - 2¹² = 2989638539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2989642637) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 12508846 + ... + 12509084.

It is an arithmetic number, because the mean of its divisors is an integer number (33926400).

Almost surely, 2^2989642635 is an apocalyptic number.

2989642635 is an abundant number, since it is smaller than the sum of its proper divisors (3524226165).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2989642635 is a wasteful number, since it uses less digits than its factorization.

2989642635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 346 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 54.

The square root of 2989642635 is about 54677.6246283615. The cubic root of 2989642635 is about 1440.5878892980.

The spelling of 2989642635 in words is "two billion, nine hundred eighty-nine million, six hundred forty-two thousand, six hundred thirty-five".