3703766681 has 2 divisors, whose sum is σ = 3703766682. Its totient is φ = 3703766680.

The previous prime is 3703766603. The next prime is 3703766719. The reversal of 3703766681 is 1866673073.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3599400025 + 104366656 = 59995^2 + 10216^2 .

It is a cyclic number.

It is not a de Polignac number, because 3703766681 - 2²² = 3699572377 is a prime.

It is a super-2 number, since 2×3703766681² = 27435775254571511522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3703706681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1851883340 + 1851883341.

It is an arithmetic number, because the mean of its divisors is an integer number (1851883341).

Almost surely, 2^3703766681 is an apocalyptic number.

It is an amenable number.

3703766681 is a deficient number, since it is larger than the sum of its proper divisors (1).

3703766681 is an equidigital number, since it uses as much as digits as its factorization.

3703766681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 47.

The square root of 3703766681 is about 60858.5793541059. The cubic root of 3703766681 is about 1547.2050472627.

The spelling of 3703766681 in words is "three billion, seven hundred three million, seven hundred sixty-six thousand, six hundred eighty-one".