2215437186842 has 16 divisors (see below), whose sum is σ = 3625288460352. Its totient is φ = 1007009233920.

The previous prime is 2215437186821. The next prime is 2215437186869. The reversal of 2215437186842 is 2486817345122.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3400883 + ... + 3999609.

It is an arithmetic number, because the mean of its divisors is an integer number (226580528772).

Almost surely, 2^{2215437186842} is an apocalyptic number.

2215437186842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2215437186842 is a deficient number, since it is larger than the sum of its proper divisors (1409851273510).

2215437186842 is a wasteful number, since it uses less digits than its factorization.

2215437186842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766933.

The product of its digits is 5160960, while the sum is 53.

The spelling of 2215437186842 in words is "two trillion, two hundred fifteen billion, four hundred thirty-seven million, one hundred eighty-six thousand, eight hundred forty-two".