11943900527 has 16 divisors (see below), whose sum is σ = 13188510720. Its totient is φ = 10746336000.

The previous prime is 11943900491. The next prime is 11943900569. The reversal of 11943900527 is 72500934911.

It is a cyclic number.

It is not a de Polignac number, because 11943900527 - 2⁸ = 11943900271 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11943903527) 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, 603749 + ... + 623217.

It is an arithmetic number, because the mean of its divisors is an integer number (824281920).

Almost surely, 2^11943900527 is an apocalyptic number.

11943900527 is a deficient number, since it is larger than the sum of its proper divisors (1244610193).

11943900527 is a wasteful number, since it uses less digits than its factorization.

11943900527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20674.

The product of its (nonzero) digits is 68040, while the sum is 41.

The spelling of 11943900527 in words is "eleven billion, nine hundred forty-three million, nine hundred thousand, five hundred twenty-seven".