2036404681 has 2 divisors, whose sum is σ = 2036404682. Its totient is φ = 2036404680.

The previous prime is 2036404649. The next prime is 2036404691. The reversal of 2036404681 is 1864046302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1981051081 + 55353600 = 44509^2 + 7440^2 .

It is a cyclic number.

It is not a de Polignac number, because 2036404681 - 2⁵ = 2036404649 is a prime.

It is a super-2 number, since 2×2036404681² = 8293888049597423522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2036404691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1018202340 + 1018202341.

It is an arithmetic number, because the mean of its divisors is an integer number (1018202341).

Almost surely, 2^2036404681 is an apocalyptic number.

It is an amenable number.

2036404681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2036404681 is an equidigital number, since it uses as much as digits as its factorization.

2036404681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 2036404681 is about 45126.5407603995. The cubic root of 2036404681 is about 1267.5196346811.

The spelling of 2036404681 in words is "two billion, thirty-six million, four hundred four thousand, six hundred eighty-one".