3778977899 has 2 divisors, whose sum is σ = 3778977900. Its totient is φ = 3778977898.

The previous prime is 3778977871. The next prime is 3778977929. The reversal of 3778977899 is 9987798773.

3778977899 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3778977899 is a prime.

It is a super-2 number, since 2×3778977899² = 28561347922260908402, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (3778977859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1889488949 + 1889488950.

It is an arithmetic number, because the mean of its divisors is an integer number (1889488950).

Almost surely, 2^3778977899 is an apocalyptic number.

3778977899 is a deficient number, since it is larger than the sum of its proper divisors (1).

3778977899 is an equidigital number, since it uses as much as digits as its factorization.

3778977899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336063168, while the sum is 74.

The square root of 3778977899 is about 61473.3917967766. The cubic root of 3778977899 is about 1557.6078143691.

The spelling of 3778977899 in words is "three billion, seven hundred seventy-eight million, nine hundred seventy-seven thousand, eight hundred ninety-nine".