21734502162325 has 12 divisors (see below), whose sum is σ = 26970411844548. Its totient is φ = 17374937753600.

The previous prime is 21734502162257. The next prime is 21734502162343. The reversal of 21734502162325 is 52326120543712.

It can be written as a sum of positive squares in 6 ways, for example, as 4973854485796 + 16760647676529 = 2230214^2 + 4093977^2 .

It is not a de Polignac number, because 21734502162325 - 2²⁵ = 21734468607893 is a prime.

It is a super-2 number, since 2×21734502162325² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

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, 316564396 + ... + 316633045.

It is an arithmetic number, because the mean of its divisors is an integer number (2247534320379).

Almost surely, 2^{21734502162325} is an apocalyptic number.

21734502162325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21734502162325 is a deficient number, since it is larger than the sum of its proper divisors (5235909682223).

21734502162325 is a wasteful number, since it uses less digits than its factorization.

21734502162325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633198824 (or 633198819 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 21734502162325 in words is "twenty-one trillion, seven hundred thirty-four billion, five hundred two million, one hundred sixty-two thousand, three hundred twenty-five".