21423588377435 has 8 divisors (see below), whose sum is σ = 25708696991376. Its totient is φ = 17138610076320.

The previous prime is 21423588377383. The next prime is 21423588377563. The reversal of 21423588377435 is 53477388532412.

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

It is not a de Polignac number, because 21423588377435 - 2²⁶ = 21423521268571 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 32216156 + ... + 32874425.

It is an arithmetic number, because the mean of its divisors is an integer number (3213587123922).

Almost surely, 2^{21423588377435} is an apocalyptic number.

21423588377435 is a deficient number, since it is larger than the sum of its proper divisors (4285108613941).

21423588377435 is an equidigital number, since it uses as much as digits as its factorization.

21423588377435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65156413.

The product of its digits is 135475200, while the sum is 62.

The spelling of 21423588377435 in words is "twenty-one trillion, four hundred twenty-three billion, five hundred eighty-eight million, three hundred seventy-seven thousand, four hundred thirty-five".