2001338393392 has 40 divisors (see below), whose sum is σ = 4176145789424. Its totient is φ = 923633535744.

The previous prime is 2001338393359. The next prime is 2001338393437. The reversal of 2001338393392 is 2933938331002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2912023 + ... + 3533065.

Almost surely, 2^{2001338393392} is an apocalyptic number.

It is an amenable number.

2001338393392 is an abundant number, since it is smaller than the sum of its proper divisors (2174807396032).

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

2001338393392 is a wasteful number, since it uses less digits than its factorization.

2001338393392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636557 (or 636551 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 46.

The spelling of 2001338393392 in words is "two trillion, one billion, three hundred thirty-eight million, three hundred ninety-three thousand, three hundred ninety-two".