21436114075 has 12 divisors (see below), whose sum is σ = 26582760648. Its totient is φ = 17147614400.

The previous prime is 21436114069. The next prime is 21436114097. The reversal of 21436114075 is 57041163412.

It is not a de Polignac number, because 21436114075 - 2⁵ = 21436114043 is a prime.

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 21436114075.

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 11 ways as a sum of consecutive naturals, for example, 457959 + ... + 502591.

It is an arithmetic number, because the mean of its divisors is an integer number (2215230054).

Almost surely, 2^21436114075 is an apocalyptic number.

21436114075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

21436114075 is a deficient number, since it is larger than the sum of its proper divisors (5146646573).

21436114075 is a wasteful number, since it uses less digits than its factorization.

21436114075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63854 (or 63849 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

Adding to 21436114075 its reverse (57041163412), we get a palindrome (78477277487).

The spelling of 21436114075 in words is "twenty-one billion, four hundred thirty-six million, one hundred fourteen thousand, seventy-five".