3905778768 has 40 divisors (see below), whose sum is σ = 10093821216. Its totient is φ = 1301424000.

The previous prime is 3905778761. The next prime is 3905778827. The reversal of 3905778768 is 8678775093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3905778761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122578 + ... + 151118.

Almost surely, 2^3905778768 is an apocalyptic number.

It is an amenable number.

3905778768 is an abundant number, since it is smaller than the sum of its proper divisors (6188042448).

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

3905778768 is a wasteful number, since it uses less digits than its factorization.

3905778768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31403 (or 31397 counting only the distinct ones).

The product of its (nonzero) digits is 17781120, while the sum is 60.

The square root of 3905778768 is about 62496.2300302986. The cubic root of 3905778768 is about 1574.8379802094.

The spelling of 3905778768 in words is "three billion, nine hundred five million, seven hundred seventy-eight thousand, seven hundred sixty-eight".