20727373890 has 32 divisors (see below), whose sum is σ = 49749489216. Its totient is φ = 5526878400.

The previous prime is 20727373883. The next prime is 20727373903. The reversal of 20727373890 is 9837372702.

20727373890 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 728940 + ... + 756840.

It is an arithmetic number, because the mean of its divisors is an integer number (1554671538).

Almost surely, 2^20727373890 is an apocalyptic number.

20727373890 is an abundant number, since it is smaller than the sum of its proper divisors (29022115326).

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

20727373890 is a wasteful number, since it uses less digits than its factorization.

20727373890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52674.

The product of its (nonzero) digits is 889056, while the sum is 48.

The spelling of 20727373890 in words is "twenty billion, seven hundred twenty-seven million, three hundred seventy-three thousand, eight hundred ninety".