424444400111451 has 16 divisors (see below), whose sum is σ = 566466143938560. Its totient is φ = 282692829376320.

The previous prime is 424444400111441. The next prime is 424444400111477. The reversal of 424444400111451 is 154111004444424.

It is not a de Polignac number, because 424444400111451 - 2¹⁸ = 424444399849307 is a prime.

It is a super-2 number, since 2×424444400111451² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (424444400111401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44948686 + ... + 53565596.

It is an arithmetic number, because the mean of its divisors is an integer number (35404133996160).

Almost surely, 2^{424444400111451} is an apocalyptic number.

424444400111451 is a deficient number, since it is larger than the sum of its proper divisors (142021743827109).

424444400111451 is a wasteful number, since it uses less digits than its factorization.

424444400111451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8632586.

The product of its (nonzero) digits is 163840, while the sum is 39.

Adding to 424444400111451 its reverse (154111004444424), we get a palindrome (578555404555875).

The spelling of 424444400111451 in words is "four hundred twenty-four trillion, four hundred forty-four billion, four hundred million, one hundred eleven thousand, four hundred fifty-one".