11279637380 has 48 divisors (see below), whose sum is σ = 26167760640. Its totient is φ = 4049760000.

The previous prime is 11279637373. The next prime is 11279637403. The reversal of 11279637380 is 8373697211.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307121 + ... + 341880.

It is an arithmetic number, because the mean of its divisors is an integer number (545161680).

Almost surely, 2^11279637380 is an apocalyptic number.

11279637380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11279637380 is an abundant number, since it is smaller than the sum of its proper divisors (14888123260).

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

11279637380 is a wasteful number, since it uses less digits than its factorization.

11279637380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649100 (or 649098 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 11279637380 in words is "eleven billion, two hundred seventy-nine million, six hundred thirty-seven thousand, three hundred eighty".