3978055752 has 32 divisors (see below), whose sum is σ = 10849243680. Its totient is φ = 1205471360.

The previous prime is 3978055733. The next prime is 3978055759. The reversal of 3978055752 is 2575508793.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3978055695 and 3978055704.

It is not an unprimeable number, because it can be changed into a prime (3978055759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7533933 + ... + 7534460.

It is an arithmetic number, because the mean of its divisors is an integer number (339038865).

Almost surely, 2^3978055752 is an apocalyptic number.

It is an amenable number.

3978055752 is an abundant number, since it is smaller than the sum of its proper divisors (6871187928).

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

3978055752 is a wasteful number, since it uses less digits than its factorization.

3978055752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15068413 (or 15068409 counting only the distinct ones).

The product of its (nonzero) digits is 2646000, while the sum is 51.

The square root of 3978055752 is about 63071.8300987057. The cubic root of 3978055752 is about 1584.4928671094.

The spelling of 3978055752 in words is "three billion, nine hundred seventy-eight million, fifty-five thousand, seven hundred fifty-two".