21734544125603 has 16 divisors (see below), whose sum is σ = 21871827394560. Its totient is φ = 21597719145600.

The previous prime is 21734544125563. The next prime is 21734544125621. The reversal of 21734544125603 is 30652144543712.

It is a cyclic number.

It is not a de Polignac number, because 21734544125603 - 2²⁶ = 21734477016739 is a prime.

It is a super-2 number, since 2×21734544125603² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21734544425603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 595791518 + ... + 595827996.

It is an arithmetic number, because the mean of its divisors is an integer number (1366989212160).

Almost surely, 2^{21734544125603} is an apocalyptic number.

21734544125603 is a deficient number, since it is larger than the sum of its proper divisors (137283268957).

21734544125603 is a wasteful number, since it uses less digits than its factorization.

21734544125603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42658.

The product of its (nonzero) digits is 2419200, while the sum is 47.

The spelling of 21734544125603 in words is "twenty-one trillion, seven hundred thirty-four billion, five hundred forty-four million, one hundred twenty-five thousand, six hundred three".