21743619409134 has 48 divisors (see below), whose sum is σ = 55578160834560. Its totient is φ = 6012060665040.

The previous prime is 21743619409133. The next prime is 21743619409217. The reversal of 21743619409134 is 43190491634712.

It is a happy number.

21743619409134 is a `hidden beast` number, since 2 + 1 + 7 + 4 + 3 + 619 + 4 + 0 + 9 + 13 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21743619409133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2783357514 + ... + 2783365325.

It is an arithmetic number, because the mean of its divisors is an integer number (1157878350720).

Almost surely, 2^{21743619409134} is an apocalyptic number.

21743619409134 is an abundant number, since it is smaller than the sum of its proper divisors (33834541425426).

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

21743619409134 is a wasteful number, since it uses less digits than its factorization.

21743619409134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5566722885 (or 5566722882 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 21743619409134 in words is "twenty-one trillion, seven hundred forty-three billion, six hundred nineteen million, four hundred nine thousand, one hundred thirty-four".