21454635341 has 32 divisors (see below), whose sum is σ = 24004657152. Its totient is φ = 19080564480.

The previous prime is 21454635331. The next prime is 21454635343. The reversal of 21454635341 is 14353645412.

It is not a de Polignac number, because 21454635341 - 2¹⁴ = 21454618957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21454635295 and 21454635304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21454635343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15034070 + ... + 15035496.

It is an arithmetic number, because the mean of its divisors is an integer number (750145536).

Almost surely, 2^21454635341 is an apocalyptic number.

It is an amenable number.

21454635341 is a deficient number, since it is larger than the sum of its proper divisors (2550021811).

21454635341 is a wasteful number, since it uses less digits than its factorization.

21454635341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129.

The product of its digits is 172800, while the sum is 38.

The spelling of 21454635341 in words is "twenty-one billion, four hundred fifty-four million, six hundred thirty-five thousand, three hundred forty-one".