21360002436441 has 24 divisors (see below), whose sum is σ = 30863631052800. Its totient is φ = 14235251104800.

The previous prime is 21360002436433. The next prime is 21360002436473. The reversal of 21360002436441 is 14463420006312.

21360002436441 is a `hidden beast` number, since 2 + 1 + 3 + 6 + 0 + 0 + 0 + 2 + 4 + 3 + 644 + 1 = 666.

It is not a de Polignac number, because 21360002436441 - 2³ = 21360002436433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21360002436396 and 21360002436405.

It is not an unprimeable number, because it can be changed into a prime (21360002436841) 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, 683920296 + ... + 683951526.

It is an arithmetic number, because the mean of its divisors is an integer number (1285984627200).

Almost surely, 2^{21360002436441} is an apocalyptic number.

It is an amenable number.

21360002436441 is a deficient number, since it is larger than the sum of its proper divisors (9503628616359).

21360002436441 is a wasteful number, since it uses less digits than its factorization.

21360002436441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54157 (or 54154 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 21360002436441 in words is "twenty-one trillion, three hundred sixty billion, two million, four hundred thirty-six thousand, four hundred forty-one".