28290921114 has 16 divisors (see below), whose sum is σ = 57897699552. Its totient is φ = 9210997488.

The previous prime is 28290921107. The next prime is 28290921143. The reversal of 28290921114 is 41112909282.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54827109 + ... + 54827624.

It is an arithmetic number, because the mean of its divisors is an integer number (3618606222).

Almost surely, 2^28290921114 is an apocalyptic number.

28290921114 is an abundant number, since it is smaller than the sum of its proper divisors (29606778438).

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

28290921114 is a wasteful number, since it uses less digits than its factorization.

28290921114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109654781.

The product of its (nonzero) digits is 20736, while the sum is 39.

The spelling of 28290921114 in words is "twenty-eight billion, two hundred ninety million, nine hundred twenty-one thousand, one hundred fourteen".