11889846531 has 12 divisors (see below), whose sum is σ = 17498265408. Its totient is φ = 7777006224.

The previous prime is 11889846491. The next prime is 11889846541. The reversal of 11889846531 is 13564898811.

It is a happy number.

11889846531 is a `hidden beast` number, since 1 + 18 + 8 + 98 + 4 + 6 + 531 = 666.

It is not a de Polignac number, because 11889846531 - 2¹⁵ = 11889813763 is a prime.

It is a super-2 number, since 2×11889846531² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11889846541) 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 11 ways as a sum of consecutive naturals, for example, 12462675 + ... + 12463628.

It is an arithmetic number, because the mean of its divisors is an integer number (1458188784).

Almost surely, 2^11889846531 is an apocalyptic number.

11889846531 is a deficient number, since it is larger than the sum of its proper divisors (5608418877).

11889846531 is a wasteful number, since it uses less digits than its factorization.

11889846531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24926362 (or 24926359 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 54.

The spelling of 11889846531 in words is "eleven billion, eight hundred eighty-nine million, eight hundred forty-six thousand, five hundred thirty-one".