2036722813 has 4 divisors (see below), whose sum is σ = 2037688828. Its totient is φ = 2035756800.

The previous prime is 2036722783. The next prime is 2036722823. The reversal of 2036722813 is 3182276302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3182276302 = 2 ⋅1591138151.

It can be written as a sum of positive squares in 2 ways, for example, as 297666009 + 1739056804 = 17253^2 + 41702^2 .

It is a cyclic number.

It is not a de Polignac number, because 2036722813 - 2²¹ = 2034625661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2036722823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479838 + ... + 484063.

It is an arithmetic number, because the mean of its divisors is an integer number (509422207).

Almost surely, 2^2036722813 is an apocalyptic number.

It is an amenable number.

2036722813 is a deficient number, since it is larger than the sum of its proper divisors (966015).

2036722813 is an equidigital number, since it uses as much as digits as its factorization.

2036722813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966014.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 2036722813 is about 45130.0655106992. The cubic root of 2036722813 is about 1267.5856362252.

The spelling of 2036722813 in words is "two billion, thirty-six million, seven hundred twenty-two thousand, eight hundred thirteen".