21462732353 has 4 divisors (see below), whose sum is σ = 21506804160. Its totient is φ = 21418660548.

The previous prime is 21462732307. The next prime is 21462732377. The reversal of 21462732353 is 35323726412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21462732353 - 2¹⁴ = 21462715969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21462732383) 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, 22035173 + ... + 22036146.

It is an arithmetic number, because the mean of its divisors is an integer number (5376701040).

Almost surely, 2^21462732353 is an apocalyptic number.

It is an amenable number.

21462732353 is a deficient number, since it is larger than the sum of its proper divisors (44071807).

21462732353 is an equidigital number, since it uses as much as digits as its factorization.

21462732353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44071806.

The product of its digits is 181440, while the sum is 38.

The spelling of 21462732353 in words is "twenty-one billion, four hundred sixty-two million, seven hundred thirty-two thousand, three hundred fifty-three".