28966290990 has 128 divisors (see below), whose sum is σ = 90595169280. Its totient is φ = 5752055808.

The previous prime is 28966290971. The next prime is 28966291031. The reversal of 28966290990 is 9909266982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 265660 + ... + 358479.

It is an arithmetic number, because the mean of its divisors is an integer number (707774760).

Almost surely, 2^28966290990 is an apocalyptic number.

28966290990 is an abundant number, since it is smaller than the sum of its proper divisors (61628878290).

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

28966290990 is a wasteful number, since it uses less digits than its factorization.

28966290990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624186.

The product of its (nonzero) digits is 7558272, while the sum is 60.

The spelling of 28966290990 in words is "twenty-eight billion, nine hundred sixty-six million, two hundred ninety thousand, nine hundred ninety".