21463909059 has 8 divisors (see below), whose sum is σ = 28666166032. Its totient is φ = 14285462400.

The previous prime is 21463909039. The next prime is 21463909063. The reversal of 21463909059 is 95090936412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21463909059 - 2⁷ = 21463908931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21463908999 and 21463909017.

It is not an unprimeable number, because it can be changed into a prime (21463909009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5950474 + ... + 5954079.

It is an arithmetic number, because the mean of its divisors is an integer number (3583270754).

Almost surely, 2^21463909059 is an apocalyptic number.

21463909059 is a deficient number, since it is larger than the sum of its proper divisors (7202256973).

21463909059 is a wasteful number, since it uses less digits than its factorization.

21463909059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11905157.

The product of its (nonzero) digits is 524880, while the sum is 48.

The spelling of 21463909059 in words is "twenty-one billion, four hundred sixty-three million, nine hundred nine thousand, fifty-nine".