11851257567 has 16 divisors (see below), whose sum is σ = 15928725600. Its totient is φ = 7837519872.

The previous prime is 11851257557. The next prime is 11851257589. The reversal of 11851257567 is 76575215811.

It is a happy number.

It is not a de Polignac number, because 11851257567 - 2⁶ = 11851257503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11851257527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207603 + ... + 258459.

It is an arithmetic number, because the mean of its divisors is an integer number (995545350).

Almost surely, 2^11851257567 is an apocalyptic number.

11851257567 is a deficient number, since it is larger than the sum of its proper divisors (4077468033).

11851257567 is a wasteful number, since it uses less digits than its factorization.

11851257567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51482.

The product of its digits is 588000, while the sum is 48.

The spelling of 11851257567 in words is "eleven billion, eight hundred fifty-one million, two hundred fifty-seven thousand, five hundred sixty-seven".