2001810247992 has 64 divisors (see below), whose sum is σ = 5560732857600. Its totient is φ = 667252222560.

The previous prime is 2001810247991. The next prime is 2001810247993. The reversal of 2001810247992 is 2997420181002.

It is an interprime number because it is at equal distance from previous prime (2001810247991) and next prime (2001810247993).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001810247991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9797517 + ... + 9999747.

It is an arithmetic number, because the mean of its divisors is an integer number (86886450900).

Almost surely, 2^{2001810247992} is an apocalyptic number.

It is an amenable number.

2001810247992 is an abundant number, since it is smaller than the sum of its proper divisors (3558922609608).

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

2001810247992 is a wasteful number, since it uses less digits than its factorization.

2001810247992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248073 (or 248063 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 2001810247992 in words is "two trillion, one billion, eight hundred ten million, two hundred forty-seven thousand, nine hundred ninety-two".