20234231864 has 32 divisors (see below), whose sum is σ = 47300803200. Its totient is φ = 7883466720.

The previous prime is 20234231821. The next prime is 20234231869. The reversal of 20234231864 is 46813243202.

It is a super-2 number, since 2×20234231864² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20234231869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16423274 + ... + 16424505.

It is an arithmetic number, because the mean of its divisors is an integer number (1478150100).

Almost surely, 2^20234231864 is an apocalyptic number.

It is an amenable number.

20234231864 is an abundant number, since it is smaller than the sum of its proper divisors (27066571336).

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

20234231864 is a wasteful number, since it uses less digits than its factorization.

20234231864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32847803 (or 32847799 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

The spelling of 20234231864 in words is "twenty billion, two hundred thirty-four million, two hundred thirty-one thousand, eight hundred sixty-four".