2081312594 has 8 divisors (see below), whose sum is σ = 3122163120. Its totient is φ = 1040591556.

The previous prime is 2081312581. The next prime is 2081312633. The reversal of 2081312594 is 4952131802.

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

It is a super-2 number, since 2×2081312594² = 8663724227886017672, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41837 + ... + 76895.

It is an arithmetic number, because the mean of its divisors is an integer number (390270390).

Almost surely, 2^2081312594 is an apocalyptic number.

2081312594 is a deficient number, since it is larger than the sum of its proper divisors (1040850526).

2081312594 is a wasteful number, since it uses less digits than its factorization.

2081312594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64744.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 2081312594 is about 45621.4049980927. The cubic root of 2081312594 is about 1276.7693173110.

The spelling of 2081312594 in words is "two billion, eighty-one million, three hundred twelve thousand, five hundred ninety-four".