11905390392 has 128 divisors (see below), whose sum is σ = 34862530560. Its totient is φ = 3317086080.

The previous prime is 11905390379. The next prime is 11905390397. The reversal of 11905390392 is 29309350911.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11905390397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7158153 + ... + 7159815.

It is an arithmetic number, because the mean of its divisors is an integer number (272363520).

Almost surely, 2^11905390392 is an apocalyptic number.

11905390392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11905390392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17431265280).

11905390392 is an abundant number, since it is smaller than the sum of its proper divisors (22957140168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11905390392 is a wasteful number, since it uses less digits than its factorization.

11905390392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2713 (or 2709 counting only the distinct ones).

The product of its (nonzero) digits is 65610, while the sum is 42.

The spelling of 11905390392 in words is "eleven billion, nine hundred five million, three hundred ninety thousand, three hundred ninety-two".