20464247733 has 16 divisors (see below), whose sum is σ = 27341770560. Its totient is φ = 13614806016.

The previous prime is 20464247719. The next prime is 20464247779. The reversal of 20464247733 is 33774246402.

It is a happy number.

It is not a de Polignac number, because 20464247733 - 2⁸ = 20464247477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20464247633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6521941 + ... + 6525077.

It is an arithmetic number, because the mean of its divisors is an integer number (1708860660).

Almost surely, 2^20464247733 is an apocalyptic number.

It is an amenable number.

20464247733 is a deficient number, since it is larger than the sum of its proper divisors (6877522827).

20464247733 is a wasteful number, since it uses less digits than its factorization.

20464247733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6916.

The product of its (nonzero) digits is 677376, while the sum is 42.

The spelling of 20464247733 in words is "twenty billion, four hundred sixty-four million, two hundred forty-seven thousand, seven hundred thirty-three".