20329021743 has 12 divisors (see below), whose sum is σ = 27377074584. Its totient is φ = 13416858000.

The previous prime is 20329021693. The next prime is 20329021819. The reversal of 20329021743 is 34712092302.

It is not a de Polignac number, because 20329021743 - 2⁸ = 20329021487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20329021043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2477778 + ... + 2485968.

It is an arithmetic number, because the mean of its divisors is an integer number (2281422882).

Almost surely, 2^20329021743 is an apocalyptic number.

20329021743 is a deficient number, since it is larger than the sum of its proper divisors (7048052841).

20329021743 is an frugal number, since it uses more digits than its factorization.

20329021743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16486 (or 8295 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The spelling of 20329021743 in words is "twenty billion, three hundred twenty-nine million, twenty-one thousand, seven hundred forty-three".