11618343750 has 112 divisors (see below), whose sum is σ = 31283037072. Its totient is φ = 2859600000.

The previous prime is 11618343743. The next prime is 11618343769. The reversal of 11618343750 is 5734381611.

It is a super-2 number, since 2×11618343750² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11618343699 and 11618343708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1213984 + ... + 1223516.

It is an arithmetic number, because the mean of its divisors is an integer number (279312831).

Almost surely, 2^11618343750 is an apocalyptic number.

11618343750 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 11618343750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15641518536).

11618343750 is an abundant number, since it is smaller than the sum of its proper divisors (19664693322).

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

11618343750 is an frugal number, since it uses more digits than its factorization.

11618343750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9581 (or 9556 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 11618343750 in words is "eleven billion, six hundred eighteen million, three hundred forty-three thousand, seven hundred fifty".