1800931452942 has 8 divisors (see below), whose sum is σ = 3601862905896. Its totient is φ = 600310484312.

The previous prime is 1800931452923. The next prime is 1800931452953. The reversal of 1800931452942 is 2492541390081.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

1800931452942 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1800931452891 and 1800931452900.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 150077621073 + ... + 150077621084.

It is an arithmetic number, because the mean of its divisors is an integer number (450232863237).

Almost surely, 2^{1800931452942} is an apocalyptic number.

1800931452942 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1800931452942 is a wasteful number, since it uses less digits than its factorization.

1800931452942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300155242162.

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 1800931452942 in words is "one trillion, eight hundred billion, nine hundred thirty-one million, four hundred fifty-two thousand, nine hundred forty-two".