11756381850 has 192 divisors, whose sum is σ = 33412980480. Its totient is φ = 3037305600.

The previous prime is 11756381849. The next prime is 11756381867. The reversal of 11756381850 is 5818365711.

11756381850 is a `hidden beast` number, since 1 + 1 + 7 + 5 + 638 + 1 + 8 + 5 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 11756381796 and 11756381805.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18631035 + ... + 18631665.

It is an arithmetic number, because the mean of its divisors is an integer number (174025940).

Almost surely, 2^11756381850 is an apocalyptic number.

11756381850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11756381850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16706490240).

11756381850 is an abundant number, since it is smaller than the sum of its proper divisors (21656598630).

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

11756381850 is a wasteful number, since it uses less digits than its factorization.

11756381850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062 (or 1051 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The spelling of 11756381850 in words is "eleven billion, seven hundred fifty-six million, three hundred eighty-one thousand, eight hundred fifty".