11383756920 has 192 divisors, whose sum is σ = 39306047040. Its totient is φ = 2847436800.

The previous prime is 11383756883. The next prime is 11383756927. The reversal of 11383756920 is 2965738311.

11383756920 is a `hidden beast` number, since 1 + 1 + 3 + 83 + 7 + 569 + 2 + 0 = 666.

It is a super-2 number, since 2×11383756920² (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11383756927) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1900330 + ... + 1906310.

It is an arithmetic number, because the mean of its divisors is an integer number (204718995).

Almost surely, 2^11383756920 is an apocalyptic number.

11383756920 is a gapful number since it is divisible by the number (10) 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 11383756920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19653023520).

11383756920 is an abundant number, since it is smaller than the sum of its proper divisors (27922290120).

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

11383756920 is a wasteful number, since it uses less digits than its factorization.

11383756920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6326 (or 6319 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 11383756920 in words is "eleven billion, three hundred eighty-three million, seven hundred fifty-six thousand, nine hundred twenty".