21753736600734 has 24 divisors (see below), whose sum is σ = 47335383942912. Its totient is φ = 7220124306720.

The previous prime is 21753736600691. The next prime is 21753736600741. The reversal of 21753736600734 is 43700663735712.

21753736600734 is a `hidden beast` number, since 2 + 1 + 7 + 537 + 36 + 6 + 0 + 0 + 73 + 4 = 666.

It is a super-2 number, since 2×21753736600734² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2593431262 + ... + 2593439649.

It is an arithmetic number, because the mean of its divisors is an integer number (1972307664288).

Almost surely, 2^{21753736600734} is an apocalyptic number.

21753736600734 is an abundant number, since it is smaller than the sum of its proper divisors (25581647342178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21753736600734 is a wasteful number, since it uses less digits than its factorization.

21753736600734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5186871152 (or 5186871149 counting only the distinct ones).

The product of its (nonzero) digits is 13335840, while the sum is 54.

The spelling of 21753736600734 in words is "twenty-one trillion, seven hundred fifty-three billion, seven hundred thirty-six million, six hundred thousand, seven hundred thirty-four".