2064186919044 has 60 divisors (see below), whose sum is σ = 5396328977424. Its totient is φ = 688044884976.

The previous prime is 2064186919021. The next prime is 2064186919057. The reversal of 2064186919044 is 4409196814602.

2064186919044 is a `hidden beast` number, since 206 + 418 + 6 + 9 + 19 + 0 + 4 + 4 = 666.

It is a super-2 number, since 2×2064186919044² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 22331587 + ... + 22423829.

Almost surely, 2^{2064186919044} is an apocalyptic number.

It is an amenable number.

2064186919044 is an abundant number, since it is smaller than the sum of its proper divisors (3332142058380).

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

2064186919044 is a wasteful number, since it uses less digits than its factorization.

2064186919044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161326 (or 161315 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 2064186919044 in words is "two trillion, sixty-four billion, one hundred eighty-six million, nine hundred nineteen thousand, forty-four".