11818275840 has 1056 divisors, whose sum is σ = 51501864960. Its totient is φ = 2540077056.

The previous prime is 11818275839. The next prime is 11818275851. The reversal of 11818275840 is 4857281811.

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

It is a congruent number.

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, 200309731 + ... + 200309789.

Almost surely, 2^11818275840 is an apocalyptic number.

11818275840 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 11818275840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25750932480).

11818275840 is an abundant number, since it is smaller than the sum of its proper divisors (39683589120).

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

11818275840 is an equidigital number, since it uses as much as digits as its factorization.

11818275840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 45.

The spelling of 11818275840 in words is "eleven billion, eight hundred eighteen million, two hundred seventy-five thousand, eight hundred forty".