21713633054 has 8 divisors (see below), whose sum is σ = 32620329720. Its totient is φ = 10840189816.

The previous prime is 21713633047. The next prime is 21713633057. The reversal of 21713633054 is 45033631712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21713633054² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21713633057) 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, 8311724 + ... + 8314335.

It is an arithmetic number, because the mean of its divisors is an integer number (4077541215).

Almost surely, 2^21713633054 is an apocalyptic number.

21713633054 is a deficient number, since it is larger than the sum of its proper divisors (10906696666).

21713633054 is a wasteful number, since it uses less digits than its factorization.

21713633054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16626714.

The product of its (nonzero) digits is 45360, while the sum is 35.

The spelling of 21713633054 in words is "twenty-one billion, seven hundred thirteen million, six hundred thirty-three thousand, fifty-four".