20886267090 has 32 divisors (see below), whose sum is σ = 53982968256. Its totient is φ = 5141234880.

The previous prime is 20886267053. The next prime is 20886267097. The reversal of 20886267090 is 9076268802.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20886267097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26776876 + ... + 26777655.

It is an arithmetic number, because the mean of its divisors is an integer number (1686967758).

Almost surely, 2^20886267090 is an apocalyptic number.

20886267090 is an abundant number, since it is smaller than the sum of its proper divisors (33096701166).

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

20886267090 is a wasteful number, since it uses less digits than its factorization.

20886267090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53554554.

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 20886267090 in words is "twenty billion, eight hundred eighty-six million, two hundred sixty-seven thousand, ninety".