20733867623 has 8 divisors (see below), whose sum is σ = 23816133792. Its totient is φ = 17681672736.

The previous prime is 20733867619. The next prime is 20733867643. The reversal of 20733867623 is 32676833702.

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

It is not a de Polignac number, because 20733867623 - 2² = 20733867619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20733867613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7516340 + ... + 7519097.

It is an arithmetic number, because the mean of its divisors is an integer number (2977016724).

Almost surely, 2^20733867623 is an apocalyptic number.

20733867623 is a deficient number, since it is larger than the sum of its proper divisors (3082266169).

20733867623 is a wasteful number, since it uses less digits than its factorization.

20733867623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15035641.

The product of its (nonzero) digits is 1524096, while the sum is 47.

The spelling of 20733867623 in words is "twenty billion, seven hundred thirty-three million, eight hundred sixty-seven thousand, six hundred twenty-three".