10524216421 has 6 divisors (see below), whose sum is σ = 11001686150. Its totient is φ = 10066641288.

The previous prime is 10524216383. The next prime is 10524216427. The reversal of 10524216421 is 12461242501.

10524216421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10499076225 + 25140196 = 102465^2 + 5014^2 .

It is not a de Polignac number, because 10524216421 - 2⁷ = 10524216293 is a prime.

It is a super-2 number, since 2×10524216421² (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 10524216421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10524216427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9946746 + ... + 9947803.

Almost surely, 2^10524216421 is an apocalyptic number.

It is an amenable number.

10524216421 is a deficient number, since it is larger than the sum of its proper divisors (477469729).

10524216421 is an equidigital number, since it uses as much as digits as its factorization.

10524216421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19894595 (or 19894572 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 10524216421 its reverse (12461242501), we get a palindrome (22985458922).

The spelling of 10524216421 in words is "ten billion, five hundred twenty-four million, two hundred sixteen thousand, four hundred twenty-one".