20934943024 has 20 divisors (see below), whose sum is σ = 40573624600. Its totient is φ = 10464330240.

The previous prime is 20934943021. The next prime is 20934943049. The reversal of 20934943024 is 42034943902.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20934943021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140874 + ... + 248425.

It is an arithmetic number, because the mean of its divisors is an integer number (2028681230).

Almost surely, 2^20934943024 is an apocalyptic number.

It is an amenable number.

20934943024 is a deficient number, since it is larger than the sum of its proper divisors (19638681576).

20934943024 is a wasteful number, since it uses less digits than its factorization.

20934943024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392668 (or 392662 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 20934943024 in words is "twenty billion, nine hundred thirty-four million, nine hundred forty-three thousand, twenty-four".