2072066731 has 4 divisors (see below), whose sum is σ = 2368076272. Its totient is φ = 1776057192.

The previous prime is 2072066719. The next prime is 2072066741. The reversal of 2072066731 is 1376602702.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2072066731 - 2²⁷ = 1937849003 is a prime.

It is a super-2 number, since 2×2072066731² = 8586921075434052722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2072066701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148004760 + ... + 148004773.

It is an arithmetic number, because the mean of its divisors is an integer number (592019068).

Almost surely, 2^2072066731 is an apocalyptic number.

2072066731 is a deficient number, since it is larger than the sum of its proper divisors (296009541).

2072066731 is an equidigital number, since it uses as much as digits as its factorization.

2072066731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296009540.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 2072066731 is about 45519.9596990156. The cubic root of 2072066731 is about 1274.8759035442.

The spelling of 2072066731 in words is "two billion, seventy-two million, sixty-six thousand, seven hundred thirty-one".