2042188420578 has 64 divisors (see below), whose sum is σ = 4204224912384. Its totient is φ = 661050216000.

The previous prime is 2042188420543. The next prime is 2042188420579. The reversal of 2042188420578 is 8750248812402.

It is a self number, because there is not a number n which added to its sum of digits gives 2042188420578.

It is not an unprimeable number, because it can be changed into a prime (2042188420579) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45878913 + ... + 45923403.

It is an arithmetic number, because the mean of its divisors is an integer number (65691014256).

Almost surely, 2^{2042188420578} is an apocalyptic number.

2042188420578 is an abundant number, since it is smaller than the sum of its proper divisors (2162036491806).

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

2042188420578 is a wasteful number, since it uses less digits than its factorization.

2042188420578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46151.

The product of its (nonzero) digits is 2293760, while the sum is 51.

The spelling of 2042188420578 in words is "two trillion, forty-two billion, one hundred eighty-eight million, four hundred twenty thousand, five hundred seventy-eight".