11434371404451 has 32 divisors (see below), whose sum is σ = 16332765039360. Its totient is φ = 7102277745024.

The previous prime is 11434371404447. The next prime is 11434371404503. The reversal of 11434371404451 is 15440417343411.

It is a happy number.

It is not a de Polignac number, because 11434371404451 - 2² = 11434371404447 is a prime.

It is a super-2 number, since 2×11434371404451² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11434371404051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18102156 + ... + 18723161.

It is an arithmetic number, because the mean of its divisors is an integer number (510398907480).

Almost surely, 2^{11434371404451} is an apocalyptic number.

11434371404451 is a deficient number, since it is larger than the sum of its proper divisors (4898393634909).

11434371404451 is a wasteful number, since it uses less digits than its factorization.

11434371404451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36825475.

The product of its (nonzero) digits is 322560, while the sum is 42.

Adding to 11434371404451 its reverse (15440417343411), we get a palindrome (26874788747862).

The spelling of 11434371404451 in words is "eleven trillion, four hundred thirty-four billion, three hundred seventy-one million, four hundred four thousand, four hundred fifty-one".