21462283619 has 4 divisors (see below), whose sum is σ = 24528324144. Its totient is φ = 18396243096.

The previous prime is 21462283501. The next prime is 21462283627. The reversal of 21462283619 is 91638226412.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 21462283619 - 2⁸ = 21462283363 is a prime.

It is a super-2 number, since 2×21462283619² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21462283619.

It is not an unprimeable number, because it can be changed into a prime (21462283669) 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 3 ways as a sum of consecutive naturals, for example, 1533020252 + ... + 1533020265.

It is an arithmetic number, because the mean of its divisors is an integer number (6132081036).

Almost surely, 2^21462283619 is an apocalyptic number.

21462283619 is a deficient number, since it is larger than the sum of its proper divisors (3066040525).

21462283619 is an equidigital number, since it uses as much as digits as its factorization.

21462283619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3066040524.

The product of its digits is 248832, while the sum is 44.

The spelling of 21462283619 in words is "twenty-one billion, four hundred sixty-two million, two hundred eighty-three thousand, six hundred nineteen".