3778496669 has 2 divisors, whose sum is σ = 3778496670. Its totient is φ = 3778496668.

The previous prime is 3778496641. The next prime is 3778496713. The reversal of 3778496669 is 9666948773.

3778496669 is digitally balanced in base 2, 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., 2887772644 + 890724025 = 53738^2 + 29845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3778496669 is a prime.

It is a super-2 number, since 2×3778496669² = 28554074155288191122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3778496629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1889248334 + 1889248335.

It is an arithmetic number, because the mean of its divisors is an integer number (1889248335).

Almost surely, 2^3778496669 is an apocalyptic number.

It is an amenable number.

3778496669 is a deficient number, since it is larger than the sum of its proper divisors (1).

3778496669 is an equidigital number, since it uses as much as digits as its factorization.

3778496669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82301184, while the sum is 65.

The square root of 3778496669 is about 61469.4775396700. The cubic root of 3778496669 is about 1557.5416942480.

The spelling of 3778496669 in words is "three billion, seven hundred seventy-eight million, four hundred ninety-six thousand, six hundred sixty-nine".