1869604031244 has 12 divisors (see below), whose sum is σ = 4362409406264. Its totient is φ = 623201343744.

The previous prime is 1869604031219. The next prime is 1869604031263. The reversal of 1869604031244 is 4421304069681.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1869604031193 and 1869604031202.

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, 77900167957 + ... + 77900167980.

Almost surely, 2^{1869604031244} is an apocalyptic number.

It is an amenable number.

1869604031244 is an abundant number, since it is smaller than the sum of its proper divisors (2492805375020).

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

1869604031244 is a wasteful number, since it uses less digits than its factorization.

1869604031244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155800335944 (or 155800335942 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 1869604031244 in words is "one trillion, eight hundred sixty-nine billion, six hundred four million, thirty-one thousand, two hundred forty-four".