11889661927 has 16 divisors (see below), whose sum is σ = 13972008960. Its totient is φ = 9974671200.

The previous prime is 11889661907. The next prime is 11889661963. The reversal of 11889661927 is 72916698811.

It is a de Polignac number, because none of the positive numbers 2^k-11889661927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11889661907) 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, 671802 + ... + 689272.

It is an arithmetic number, because the mean of its divisors is an integer number (873250560).

Almost surely, 2^11889661927 is an apocalyptic number.

11889661927 is a deficient number, since it is larger than the sum of its proper divisors (2082347033).

11889661927 is a wasteful number, since it uses less digits than its factorization.

11889661927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22254.

The product of its digits is 2612736, while the sum is 58.

The spelling of 11889661927 in words is "eleven billion, eight hundred eighty-nine million, six hundred sixty-one thousand, nine hundred twenty-seven".