20363867934 has 16 divisors (see below), whose sum is σ = 40755440640. Its totient is φ = 6783338520.

The previous prime is 20363867929. The next prime is 20363867941. The reversal of 20363867934 is 43976836302.

It is a happy number.

It is a super-3 number, since 3×20363867934³ (a number of 32 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1144804 + ... + 1162455.

It is an arithmetic number, because the mean of its divisors is an integer number (2547215040).

Almost surely, 2^20363867934 is an apocalyptic number.

20363867934 is an abundant number, since it is smaller than the sum of its proper divisors (20391572706).

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

20363867934 is a wasteful number, since it uses less digits than its factorization.

20363867934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2308735.

The product of its (nonzero) digits is 3919104, while the sum is 51.

The spelling of 20363867934 in words is "twenty billion, three hundred sixty-three million, eight hundred sixty-seven thousand, nine hundred thirty-four".