1980010178442 has 24 divisors (see below), whose sum is σ = 4350444901920. Its totient is φ = 650707569960.

The previous prime is 1980010178417. The next prime is 1980010178521. The reversal of 1980010178442 is 2448710100891.

1980010178442 is a `hidden beast` number, since 198 + 0 + 0 + 1 + 0 + 17 + 8 + 442 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 774650592 + ... + 774653147.

It is an arithmetic number, because the mean of its divisors is an integer number (181268537580).

Almost surely, 2^{1980010178442} is an apocalyptic number.

1980010178442 is an abundant number, since it is smaller than the sum of its proper divisors (2370434723478).

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

1980010178442 is a wasteful number, since it uses less digits than its factorization.

1980010178442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549303818 (or 1549303815 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The spelling of 1980010178442 in words is "one trillion, nine hundred eighty billion, ten million, one hundred seventy-eight thousand, four hundred forty-two".