21214036462563 has 80 divisors (see below), whose sum is σ = 36845156195584. Its totient is φ = 11913003305280.

The previous prime is 21214036462547. The next prime is 21214036462571. The reversal of 21214036462563 is 36526463041212.

21214036462563 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 40 + 3 + 6 + 46 + 2 + 563 = 666.

It is not a de Polignac number, because 21214036462563 - 2⁴ = 21214036462547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21214036462573) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 15330156 + ... + 16656582.

Almost surely, 2^{21214036462563} is an apocalyptic number.

21214036462563 is a deficient number, since it is larger than the sum of its proper divisors (15631119733021).

21214036462563 is a wasteful number, since it uses less digits than its factorization.

21214036462563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326934 (or 1326925 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 21214036462563 in words is "twenty-one trillion, two hundred fourteen billion, thirty-six million, four hundred sixty-two thousand, five hundred sixty-three".