11382786405 has 24 divisors (see below), whose sum is σ = 19823687520. Its totient is φ = 6042042720.

The previous prime is 11382786391. The next prime is 11382786421. The reversal of 11382786405 is 50468728311.

It is not a de Polignac number, because 11382786405 - 2¹⁵ = 11382753637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 589915 + ... + 608904.

It is an arithmetic number, because the mean of its divisors is an integer number (825986980).

Almost surely, 2^11382786405 is an apocalyptic number.

11382786405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11382786405 is a deficient number, since it is larger than the sum of its proper divisors (8440901115).

11382786405 is a wasteful number, since it uses less digits than its factorization.

11382786405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199041 (or 1199038 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 11382786405 in words is "eleven billion, three hundred eighty-two million, seven hundred eighty-six thousand, four hundred five".