11937533874689 has 4 divisors (see below), whose sum is σ = 12456557086656. Its totient is φ = 11418510662724.

The previous prime is 11937533874631. The next prime is 11937533874733. The reversal of 11937533874689 is 98647833573911.

11937533874689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 11937533874689 - 2³² = 11933238907393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11937533874619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259511605949 + ... + 259511605994.

It is an arithmetic number, because the mean of its divisors is an integer number (3114139271664).

Almost surely, 2^{11937533874689} is an apocalyptic number.

It is an amenable number.

11937533874689 is a deficient number, since it is larger than the sum of its proper divisors (519023211967).

11937533874689 is an equidigital number, since it uses as much as digits as its factorization.

11937533874689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519023211966.

The product of its digits is 823011840, while the sum is 74.

The spelling of 11937533874689 in words is "eleven trillion, nine hundred thirty-seven billion, five hundred thirty-three million, eight hundred seventy-four thousand, six hundred eighty-nine".