10521423552451 has 16 divisors (see below), whose sum is σ = 12128227524864. Its totient is φ = 8940878974944.

The previous prime is 10521423552439. The next prime is 10521423552487. The reversal of 10521423552451 is 15425532412501.

It is not a de Polignac number, because 10521423552451 - 2¹³ = 10521423544259 is a prime.

It is a super-2 number, since 2×10521423552451² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10521423552491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13089865 + ... + 13870378.

It is an arithmetic number, because the mean of its divisors is an integer number (758014220304).

Almost surely, 2^{10521423552451} is an apocalyptic number.

10521423552451 is a deficient number, since it is larger than the sum of its proper divisors (1606803972413).

10521423552451 is a wasteful number, since it uses less digits than its factorization.

10521423552451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26960730.

The product of its (nonzero) digits is 240000, while the sum is 40.

Adding to 10521423552451 its reverse (15425532412501), we get a palindrome (25946955964952).

The spelling of 10521423552451 in words is "ten trillion, five hundred twenty-one billion, four hundred twenty-three million, five hundred fifty-two thousand, four hundred fifty-one".