11854171429 has 4 divisors (see below), whose sum is σ = 11969260576. Its totient is φ = 11739082284.

The previous prime is 11854171409. The next prime is 11854171493. The reversal of 11854171429 is 92417145811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92417145811 = 71 ⋅1301649941.

It is a cyclic number.

It is not a de Polignac number, because 11854171429 - 2¹¹ = 11854169381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11854171409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57544419 + ... + 57544624.

It is an arithmetic number, because the mean of its divisors is an integer number (2992315144).

Almost surely, 2^11854171429 is an apocalyptic number.

It is an amenable number.

11854171429 is a deficient number, since it is larger than the sum of its proper divisors (115089147).

11854171429 is a wasteful number, since it uses less digits than its factorization.

11854171429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115089146.

The product of its digits is 80640, while the sum is 43.

The spelling of 11854171429 in words is "eleven billion, eight hundred fifty-four million, one hundred seventy-one thousand, four hundred twenty-nine".