20386863312 has 40 divisors (see below), whose sum is σ = 54364972800. Its totient is φ = 6576407040.

The previous prime is 20386863311. The next prime is 20386863379. The reversal of 20386863312 is 21336868302.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20386863311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6848937 + ... + 6851912.

It is an arithmetic number, because the mean of its divisors is an integer number (1359124320).

Almost surely, 2^20386863312 is an apocalyptic number.

It is an amenable number.

20386863312 is an abundant number, since it is smaller than the sum of its proper divisors (33978109488).

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

20386863312 is a wasteful number, since it uses less digits than its factorization.

20386863312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13700891 (or 13700885 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 20386863312 in words is "twenty billion, three hundred eighty-six million, eight hundred sixty-three thousand, three hundred twelve".