2188377322842 has 16 divisors (see below), whose sum is σ = 4377238854912. Its totient is φ = 729378406080.

The previous prime is 2188377322771. The next prime is 2188377322847. The reversal of 2188377322842 is 2482237738812.

It is not an unprimeable number, because it can be changed into a prime (2188377322847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20116618 + ... + 20225109.

It is an arithmetic number, because the mean of its divisors is an integer number (273577428432).

Almost surely, 2^{2188377322842} is an apocalyptic number.

2188377322842 is an abundant number, since it is smaller than the sum of its proper divisors (2188861532070).

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

2188377322842 is a wasteful number, since it uses less digits than its factorization.

2188377322842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40350773.

The product of its digits is 14450688, while the sum is 57.

The spelling of 2188377322842 in words is "two trillion, one hundred eighty-eight billion, three hundred seventy-seven million, three hundred twenty-two thousand, eight hundred forty-two".