20894267034 has 112 divisors (see below), whose sum is σ = 48947652864. Its totient is φ = 6678806400.

The previous prime is 20894266999. The next prime is 20894267081. The reversal of 20894267034 is 43076249802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 5105329 + ... + 5109419.

Almost surely, 2^20894267034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20894267034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24473826432).

20894267034 is an abundant number, since it is smaller than the sum of its proper divisors (28053385830).

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

20894267034 is a wasteful number, since it uses less digits than its factorization.

20894267034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4255 (or 4240 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 20894267034 in words is "twenty billion, eight hundred ninety-four million, two hundred sixty-seven thousand, thirty-four".