20933236973 has 8 divisors (see below), whose sum is σ = 22866434400. Its totient is φ = 19005068880.

The previous prime is 20933236963. The next prime is 20933237047. The reversal of 20933236973 is 37963233902.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20933236973 - 2²⁶ = 20866128109 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 (20933236963) 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, 1248623 + ... + 1265276.

It is an arithmetic number, because the mean of its divisors is an integer number (2858304300).

Almost surely, 2^20933236973 is an apocalyptic number.

It is an amenable number.

20933236973 is a deficient number, since it is larger than the sum of its proper divisors (1933197427).

20933236973 is a wasteful number, since it uses less digits than its factorization.

20933236973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2514667.

The product of its (nonzero) digits is 1102248, while the sum is 47.

The spelling of 20933236973 in words is "twenty billion, nine hundred thirty-three million, two hundred thirty-six thousand, nine hundred seventy-three".