2064274084581 has 8 divisors (see below), whose sum is σ = 2752460363520. Its totient is φ = 1376135264352.

The previous prime is 2064274084577. The next prime is 2064274084633. The reversal of 2064274084581 is 1854804724602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2064274084581 - 2² = 2064274084577 is a prime.

It is a super-2 number, since 2×2064274084581² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2064274084511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11763061 + ... + 11937258.

It is an arithmetic number, because the mean of its divisors is an integer number (344057545440).

Almost surely, 2^{2064274084581} is an apocalyptic number.

It is an amenable number.

2064274084581 is a deficient number, since it is larger than the sum of its proper divisors (688186278939).

2064274084581 is a wasteful number, since it uses less digits than its factorization.

2064274084581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23729355.

The product of its (nonzero) digits is 3440640, while the sum is 51.

The spelling of 2064274084581 in words is "two trillion, sixty-four billion, two hundred seventy-four million, eighty-four thousand, five hundred eighty-one".