11854574071 has 4 divisors (see below), whose sum is σ = 11906341000. Its totient is φ = 11802807144.

The previous prime is 11854574051. The next prime is 11854574087. The reversal of 11854574071 is 17047545811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11854574071 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 (11854574051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25883121 + ... + 25883578.

It is an arithmetic number, because the mean of its divisors is an integer number (2976585250).

Almost surely, 2^11854574071 is an apocalyptic number.

11854574071 is a deficient number, since it is larger than the sum of its proper divisors (51766929).

11854574071 is an equidigital number, since it uses as much as digits as its factorization.

11854574071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51766928.

The product of its (nonzero) digits is 156800, while the sum is 43.

It can be divided in two parts, 118545740 and 71, that added together give a palindrome (118545811).

The spelling of 11854574071 in words is "eleven billion, eight hundred fifty-four million, five hundred seventy-four thousand, seventy-one".