10521451879 has 4 divisors (see below), whose sum is σ = 10592065800. Its totient is φ = 10450837960.

The previous prime is 10521451859. The next prime is 10521451883. The reversal of 10521451879 is 97815412501.

10521451879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97815412501 = 29437 ⋅3322873.

It is a cyclic number.

It is not a de Polignac number, because 10521451879 - 2⁵ = 10521451847 is a prime.

It is a super-2 number, since 2×10521451879² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10521451849) 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 3 ways as a sum of consecutive naturals, for example, 35306737 + ... + 35307034.

It is an arithmetic number, because the mean of its divisors is an integer number (2648016450).

Almost surely, 2^10521451879 is an apocalyptic number.

10521451879 is a deficient number, since it is larger than the sum of its proper divisors (70613921).

10521451879 is an equidigital number, since it uses as much as digits as its factorization.

10521451879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70613920.

The product of its (nonzero) digits is 100800, while the sum is 43.

It can be divided in two parts, 10521 and 451879, that added together give a square (462400 = 680²).

The spelling of 10521451879 in words is "ten billion, five hundred twenty-one million, four hundred fifty-one thousand, eight hundred seventy-nine".