289691982990 has 48 divisors (see below), whose sum is σ = 765965257200. Its totient is φ = 75941851776.

The previous prime is 289691982929. The next prime is 289691983001. The reversal of 289691982990 is 99289196982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27272655 + ... + 27283274.

It is an arithmetic number, because the mean of its divisors is an integer number (15957609525).

Almost surely, 2^289691982990 is an apocalyptic number.

289691982990 is an abundant number, since it is smaller than the sum of its proper divisors (476273274210).

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

289691982990 is a wasteful number, since it uses less digits than its factorization.

289691982990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54556001 (or 54555998 counting only the distinct ones).

The product of its (nonzero) digits is 90699264, while the sum is 72.

The spelling of 289691982990 in words is "two hundred eighty-nine billion, six hundred ninety-one million, nine hundred eighty-two thousand, nine hundred ninety".