13424400233451 has 24 divisors (see below), whose sum is σ = 20038090941440. Its totient is φ = 8651478942000.

The previous prime is 13424400233429. The next prime is 13424400233477. The reversal of 13424400233451 is 15433200442431.

13424400233451 is a `hidden beast` number, since 1 + 34 + 244 + 0 + 0 + 2 + 334 + 51 = 666.

It is not a de Polignac number, because 13424400233451 - 2¹⁰ = 13424400232427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13424400233411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25922125 + ... + 26434926.

Almost surely, 2^{13424400233451} is an apocalyptic number.

13424400233451 is a deficient number, since it is larger than the sum of its proper divisors (6613690707989).

13424400233451 is a wasteful number, since it uses less digits than its factorization.

13424400233451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52358007 (or 52358004 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 13424400233451 its reverse (15433200442431), we get a palindrome (28857600675882).

The spelling of 13424400233451 in words is "thirteen trillion, four hundred twenty-four billion, four hundred million, two hundred thirty-three thousand, four hundred fifty-one".