3770788661 has 2 divisors, whose sum is σ = 3770788662. Its totient is φ = 3770788660.

The previous prime is 3770788639. The next prime is 3770788729. The reversal of 3770788661 is 1668870773.

3770788661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3285467761 + 485320900 = 57319^2 + 22030^2 .

It is a cyclic number.

It is not a de Polignac number, because 3770788661 - 2¹⁸ = 3770526517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3770788631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1885394330 + 1885394331.

It is an arithmetic number, because the mean of its divisors is an integer number (1885394331).

Almost surely, 2^3770788661 is an apocalyptic number.

It is an amenable number.

3770788661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3770788661 is an equidigital number, since it uses as much as digits as its factorization.

3770788661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2370816, while the sum is 53.

The square root of 3770788661 is about 61406.7476829705. The cubic root of 3770788661 is about 1556.4818620984.

The spelling of 3770788661 in words is "three billion, seven hundred seventy million, seven hundred eighty-eight thousand, six hundred sixty-one".