20333034678 has 64 divisors (see below), whose sum is σ = 46527478272. Its totient is φ = 5863630080.

The previous prime is 20333034677. The next prime is 20333034679. The reversal of 20333034678 is 87643033302.

It is an interprime number because it is at equal distance from previous prime (20333034677) and next prime (20333034679).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20333034677) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 265050 + ... + 333042.

It is an arithmetic number, because the mean of its divisors is an integer number (726991848).

Almost surely, 2^20333034678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20333034678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23263739136).

20333034678 is an abundant number, since it is smaller than the sum of its proper divisors (26194443594).

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

20333034678 is a wasteful number, since it uses less digits than its factorization.

20333034678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68229.

The product of its (nonzero) digits is 217728, while the sum is 39.

The spelling of 20333034678 in words is "twenty billion, three hundred thirty-three million, thirty-four thousand, six hundred seventy-eight".