20231634768 has 40 divisors (see below), whose sum is σ = 52433150016. Its totient is φ = 6722188800.

The previous prime is 20231634767. The next prime is 20231634779. The reversal of 20231634768 is 86743613202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20231634767) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 662713 + ... + 692568.

Almost surely, 2^20231634768 is an apocalyptic number.

It is an amenable number.

20231634768 is an abundant number, since it is smaller than the sum of its proper divisors (32201515248).

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

20231634768 is a wasteful number, since it uses less digits than its factorization.

20231634768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355603 (or 1355597 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 20231634768 in words is "twenty billion, two hundred thirty-one million, six hundred thirty-four thousand, seven hundred sixty-eight".