3800768778 has 64 divisors (see below), whose sum is σ = 9413712000. Its totient is φ = 1129635072.

The previous prime is 3800768773. The next prime is 3800768779. The reversal of 3800768778 is 8778670083.

It is a super-2 number, since 2×3800768778² = 28891686607639226568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (3800768771) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91513 + ... + 126396.

It is an arithmetic number, because the mean of its divisors is an integer number (147089250).

Almost surely, 2^3800768778 is an apocalyptic number.

3800768778 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3800768778 is an abundant number, since it is smaller than the sum of its proper divisors (5612943222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3800768778 is a wasteful number, since it uses less digits than its factorization.

3800768778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217956 (or 217950 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 54.

The square root of 3800768778 is about 61650.3753273247. The cubic root of 3800768778 is about 1560.5959779066.

The spelling of 3800768778 in words is "three billion, eight hundred million, seven hundred sixty-eight thousand, seven hundred seventy-eight".