20858718114 has 24 divisors (see below), whose sum is σ = 48670342812. Its totient is φ = 6418067040.

The previous prime is 20858718113. The next prime is 20858718169. The reversal of 20858718114 is 41181785802.

It can be written as a sum of positive squares in 2 ways, for example, as 18067392225 + 2791325889 = 134415^2 + 52833^2 .

It is a super-2 number, since 2×20858718114² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20858718114.

It is not an unprimeable number, because it can be changed into a prime (20858718113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44569677 + ... + 44570144.

Almost surely, 2^20858718114 is an apocalyptic number.

20858718114 is an abundant number, since it is smaller than the sum of its proper divisors (27811624698).

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

20858718114 is a wasteful number, since it uses less digits than its factorization.

20858718114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89139842 (or 89139839 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 45.

The spelling of 20858718114 in words is "twenty billion, eight hundred fifty-eight million, seven hundred eighteen thousand, one hundred fourteen".