2081564373 has 8 divisors (see below), whose sum is σ = 3171907648. Its totient is φ = 1189465344.

The previous prime is 2081564369. The next prime is 2081564393. The reversal of 2081564373 is 3734651802.

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

It is not a de Polignac number, because 2081564373 - 2² = 2081564369 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081564393) 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, 49561036 + ... + 49561077.

It is an arithmetic number, because the mean of its divisors is an integer number (396488456).

Almost surely, 2^2081564373 is an apocalyptic number.

It is an amenable number.

2081564373 is a deficient number, since it is larger than the sum of its proper divisors (1090343275).

2081564373 is an equidigital number, since it uses as much as digits as its factorization.

2081564373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99122123.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 2081564373 is about 45624.1643539912. The cubic root of 2081564373 is about 1276.8207993647.

The spelling of 2081564373 in words is "two billion, eighty-one million, five hundred sixty-four thousand, three hundred seventy-three".