11378818380 has 24 divisors (see below), whose sum is σ = 31860691632. Its totient is φ = 3034351552.

The previous prime is 11378818343. The next prime is 11378818397. The reversal of 11378818380 is 8381887311.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 94823427 + ... + 94823546.

It is an arithmetic number, because the mean of its divisors is an integer number (1327528818).

Almost surely, 2^11378818380 is an apocalyptic number.

11378818380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11378818380 is an abundant number, since it is smaller than the sum of its proper divisors (20481873252).

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

11378818380 is a wasteful number, since it uses less digits than its factorization.

11378818380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189646985 (or 189646983 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 48.

The spelling of 11378818380 in words is "eleven billion, three hundred seventy-eight million, eight hundred eighteen thousand, three hundred eighty".