3778072369 has 2 divisors, whose sum is σ = 3778072370. Its totient is φ = 3778072368.

The previous prime is 3778072349. The next prime is 3778072433. The reversal of 3778072369 is 9632708773.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3109177600 + 668894769 = 55760^2 + 25863^2 .

It is a cyclic number.

It is not a de Polignac number, because 3778072369 - 2⁷ = 3778072241 is a prime.

It is a super-2 number, since 2×3778072369² = 28547661650802544322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3778072349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1889036184 + 1889036185.

It is an arithmetic number, because the mean of its divisors is an integer number (1889036185).

Almost surely, 2^3778072369 is an apocalyptic number.

It is an amenable number.

3778072369 is a deficient number, since it is larger than the sum of its proper divisors (1).

3778072369 is an equidigital number, since it uses as much as digits as its factorization.

3778072369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2667168, while the sum is 52.

The square root of 3778072369 is about 61466.0261363951. The cubic root of 3778072369 is about 1557.4833915475.

The spelling of 3778072369 in words is "three billion, seven hundred seventy-eight million, seventy-two thousand, three hundred sixty-nine".