3816778895 has 4 divisors (see below), whose sum is σ = 4580134680. Its totient is φ = 3053423112.

The previous prime is 3816778891. The next prime is 3816778897. The reversal of 3816778895 is 5988776183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5988776183 = 13 ⋅460675091.

It is a cyclic number.

It is not a de Polignac number, because 3816778895 - 2² = 3816778891 is a prime.

It is a super-2 number, since 2×3816778895² = 29135602266634842050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3816778891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381677885 + ... + 381677894.

It is an arithmetic number, because the mean of its divisors is an integer number (1145033670).

Almost surely, 2^3816778895 is an apocalyptic number.

3816778895 is a deficient number, since it is larger than the sum of its proper divisors (763355785).

3816778895 is an equidigital number, since it uses as much as digits as its factorization.

3816778895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763355784.

The product of its digits is 20321280, while the sum is 62.

The square root of 3816778895 is about 61780.0849384330. The cubic root of 3816778895 is about 1562.7841601161.

The spelling of 3816778895 in words is "three billion, eight hundred sixteen million, seven hundred seventy-eight thousand, eight hundred ninety-five".