21364773524133 has 16 divisors (see below), whose sum is σ = 30677760353856. Its totient is φ = 13147494295680.

The previous prime is 21364773524069. The next prime is 21364773524179. The reversal of 21364773524133 is 33142537746312.

It is not a de Polignac number, because 21364773524133 - 2⁶ = 21364773524069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21364773524183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8642266 + ... + 10835972.

It is an arithmetic number, because the mean of its divisors is an integer number (1917360022116).

Almost surely, 2^{21364773524133} is an apocalyptic number.

It is an amenable number.

21364773524133 is a deficient number, since it is larger than the sum of its proper divisors (9312986829723).

21364773524133 is a wasteful number, since it uses less digits than its factorization.

21364773524133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443444.

The product of its digits is 7620480, while the sum is 51.

The spelling of 21364773524133 in words is "twenty-one trillion, three hundred sixty-four billion, seven hundred seventy-three million, five hundred twenty-four thousand, one hundred thirty-three".