11818207842 has 64 divisors (see below), whose sum is σ = 27292661760. Its totient is φ = 3341834496.

The previous prime is 11818207823. The next prime is 11818207871. The reversal of 11818207842 is 24870281811.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 11818207794 and 11818207803.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1964403 + ... + 1970409.

It is an arithmetic number, because the mean of its divisors is an integer number (426447840).

Almost surely, 2^11818207842 is an apocalyptic number.

11818207842 is an abundant number, since it is smaller than the sum of its proper divisors (15474453918).

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

11818207842 is a wasteful number, since it uses less digits than its factorization.

11818207842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6495.

The product of its (nonzero) digits is 57344, while the sum is 42.

The spelling of 11818207842 in words is "eleven billion, eight hundred eighteen million, two hundred seven thousand, eight hundred forty-two".