2064315738768 has 80 divisors (see below), whose sum is σ = 5569775684160. Its totient is φ = 658160183808.

The previous prime is 2064315738721. The next prime is 2064315738769. The reversal of 2064315738768 is 8678375134602.

It is a happy number.

It is a super-2 number, since 2×2064315738768² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2064315738769) 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, 9745555 + ... + 9955122.

It is an arithmetic number, because the mean of its divisors is an integer number (69622196052).

Almost surely, 2^{2064315738768} is an apocalyptic number.

It is an amenable number.

2064315738768 is an abundant number, since it is smaller than the sum of its proper divisors (3505459945392).

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

2064315738768 is a wasteful number, since it uses less digits than its factorization.

2064315738768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19700784 (or 19700778 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 60.

The spelling of 2064315738768 in words is "two trillion, sixty-four billion, three hundred fifteen million, seven hundred thirty-eight thousand, seven hundred sixty-eight".