3681207037 has 2 divisors, whose sum is σ = 3681207038. Its totient is φ = 3681207036.

The previous prime is 3681207029. The next prime is 3681207059. The reversal of 3681207037 is 7307021863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1963021636 + 1718185401 = 44306^2 + 41451^2 .

It is a cyclic number.

It is not a de Polignac number, because 3681207037 - 2³ = 3681207029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3681206987 and 3681207005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3681207007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1840603518 + 1840603519.

It is an arithmetic number, because the mean of its divisors is an integer number (1840603519).

Almost surely, 2^3681207037 is an apocalyptic number.

It is an amenable number.

3681207037 is a deficient number, since it is larger than the sum of its proper divisors (1).

3681207037 is an equidigital number, since it uses as much as digits as its factorization.

3681207037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 3681207037 is about 60672.9514446100. The cubic root of 3681207037 is about 1544.0573054798.

The spelling of 3681207037 in words is "three billion, six hundred eighty-one million, two hundred seven thousand, thirty-seven".