1800142885968 has 80 divisors (see below), whose sum is σ = 5444334623616. Its totient is φ = 501781985280.

The previous prime is 1800142885909. The next prime is 1800142885987. The reversal of 1800142885968 is 8695882410081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65322421 + ... + 65349972.

Almost surely, 2^{1800142885968} is an apocalyptic number.

It is an amenable number.

1800142885968 is an abundant number, since it is smaller than the sum of its proper divisors (3644191737648).

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

1800142885968 is a wasteful number, since it uses less digits than its factorization.

1800142885968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130672452 (or 130672446 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 60.

The spelling of 1800142885968 in words is "one trillion, eight hundred billion, one hundred forty-two million, eight hundred eighty-five thousand, nine hundred sixty-eight".