2064881701992 has 64 divisors (see below), whose sum is σ = 5386991184000. Its totient is φ = 658326124544.

The previous prime is 2064881701889. The next prime is 2064881701999. The reversal of 2064881701992 is 2991071884602.

It is not an unprimeable number, because it can be changed into a prime (2064881701999) 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, 9211984 + ... + 9433472.

It is an arithmetic number, because the mean of its divisors is an integer number (84171737250).

Almost surely, 2^{2064881701992} is an apocalyptic number.

It is an amenable number.

2064881701992 is an abundant number, since it is smaller than the sum of its proper divisors (3322109482008).

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

2064881701992 is a wasteful number, since it uses less digits than its factorization.

2064881701992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238410 (or 238406 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 57.

The spelling of 2064881701992 in words is "two trillion, sixty-four billion, eight hundred eighty-one million, seven hundred one thousand, nine hundred ninety-two".