21733923486 has 32 divisors (see below), whose sum is σ = 48949134336. Its totient is φ = 6373584000.

The previous prime is 21733923427. The next prime is 21733923487. The reversal of 21733923486 is 68432933712.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21733923487) 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 15 ways as a sum of consecutive naturals, for example, 5309275 + ... + 5313366.

It is an arithmetic number, because the mean of its divisors is an integer number (1529660448).

Almost surely, 2^21733923486 is an apocalyptic number.

21733923486 is an abundant number, since it is smaller than the sum of its proper divisors (27215210850).

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

21733923486 is a wasteful number, since it uses less digits than its factorization.

21733923486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10622688.

The product of its digits is 1306368, while the sum is 48.

The spelling of 21733923486 in words is "twenty-one billion, seven hundred thirty-three million, nine hundred twenty-three thousand, four hundred eighty-six".