11434717381671 has 20 divisors (see below), whose sum is σ = 17082267931872. Its totient is φ = 7622798368608.

The previous prime is 11434717381631. The next prime is 11434717381697. The reversal of 11434717381671 is 17618371743411.

It is a happy number.

11434717381671 is a `hidden beast` number, since 1 + 1 + 4 + 3 + 471 + 7 + 3 + 8 + 167 + 1 = 666.

It is not a de Polignac number, because 11434717381671 - 2¹³ = 11434717373479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11434717381631) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1409871 + ... + 4985696.

Almost surely, 2^{11434717381671} is an apocalyptic number.

11434717381671 is a deficient number, since it is larger than the sum of its proper divisors (5647550550201).

11434717381671 is an equidigital number, since it uses as much as digits as its factorization.

11434717381671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6417652 (or 6417643 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 54.

The spelling of 11434717381671 in words is "eleven trillion, four hundred thirty-four billion, seven hundred seventeen million, three hundred eighty-one thousand, six hundred seventy-one".