21452735351 has 16 divisors (see below), whose sum is σ = 22479414528. Its totient is φ = 20447769600.

The previous prime is 21452735341. The next prime is 21452735363. The reversal of 21452735351 is 15353725412.

It is a cyclic number.

It is not a de Polignac number, because 21452735351 - 2⁶ = 21452735287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21452735341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1715915 + ... + 1728371.

It is an arithmetic number, because the mean of its divisors is an integer number (1404963408).

Almost surely, 2^21452735351 is an apocalyptic number.

21452735351 is a deficient number, since it is larger than the sum of its proper divisors (1026679177).

21452735351 is a wasteful number, since it uses less digits than its factorization.

21452735351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13322.

The product of its digits is 126000, while the sum is 38.

The spelling of 21452735351 in words is "twenty-one billion, four hundred fifty-two million, seven hundred thirty-five thousand, three hundred fifty-one".