3619440194412 has 144 divisors (see below), whose sum is σ = 9958568162816. Its totient is φ = 1002215808000.

The previous prime is 3619440194329. The next prime is 3619440194431. The reversal of 3619440194412 is 2144910449163.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21236928 + ... + 21406680.

Almost surely, 2^{3619440194412} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3619440194412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4979284081408).

3619440194412 is an abundant number, since it is smaller than the sum of its proper divisors (6339127968404).

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

3619440194412 is a wasteful number, since it uses less digits than its factorization.

3619440194412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170000 (or 169957 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 3619440194412 in words is "three trillion, six hundred nineteen billion, four hundred forty million, one hundred ninety-four thousand, four hundred twelve".