21900551873735 has 8 divisors (see below), whose sum is σ = 26287368233280. Its totient is φ = 17515970842464.

The previous prime is 21900551873729. The next prime is 21900551873737. The reversal of 21900551873735 is 53737815500912.

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 21900551873735 - 2³⁴ = 21883372004551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21900551873737) 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, 558810512 + ... + 558849701.

It is an arithmetic number, because the mean of its divisors is an integer number (3285921029160).

Almost surely, 2^{21900551873735} is an apocalyptic number.

21900551873735 is a deficient number, since it is larger than the sum of its proper divisors (4386816359545).

21900551873735 is a wasteful number, since it uses less digits than its factorization.

21900551873735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117664137.

The product of its (nonzero) digits is 7938000, while the sum is 56.

The spelling of 21900551873735 in words is "twenty-one trillion, nine hundred billion, five hundred fifty-one million, eight hundred seventy-three thousand, seven hundred thirty-five".