11863040405 has 16 divisors (see below), whose sum is σ = 14542778880. Its totient is φ = 9285796992.

The previous prime is 11863040383. The next prime is 11863040417. The reversal of 11863040405 is 50404036811.

It is a cyclic number.

It is not a de Polignac number, because 11863040405 - 2¹⁰ = 11863039381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1268336 + ... + 1277654.

It is an arithmetic number, because the mean of its divisors is an integer number (908923680).

Almost surely, 2^11863040405 is an apocalyptic number.

It is an amenable number.

11863040405 is a deficient number, since it is larger than the sum of its proper divisors (2679738475).

11863040405 is an equidigital number, since it uses as much as digits as its factorization.

11863040405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14788.

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 11863040405 in words is "eleven billion, eight hundred sixty-three million, forty thousand, four hundred five".