11810011950 has 192 divisors, whose sum is σ = 36259107840. Its totient is φ = 2801952000.

The previous prime is 11810011949. The next prime is 11810011951. The reversal of 11810011950 is 5911001811.

It is an interprime number because it is at equal distance from previous prime (11810011949) and next prime (11810011951).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11810011951) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 689490 + ... + 706410.

It is an arithmetic number, because the mean of its divisors is an integer number (188849520).

Almost surely, 2^11810011950 is an apocalyptic number.

11810011950 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 11810011950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18129553920).

11810011950 is an abundant number, since it is smaller than the sum of its proper divisors (24449095890).

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

11810011950 is a wasteful number, since it uses less digits than its factorization.

11810011950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17000 (or 16989 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 27.

The spelling of 11810011950 in words is "eleven billion, eight hundred ten million, eleven thousand, nine hundred fifty".