3975365378 has 16 divisors (see below), whose sum is σ = 6031608000. Its totient is φ = 1964913552.

The previous prime is 3975365369. The next prime is 3975365413. The reversal of 3975365378 is 8735635793.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74933 + ... + 116471.

It is an arithmetic number, because the mean of its divisors is an integer number (376975500).

Almost surely, 2^3975365378 is an apocalyptic number.

3975365378 is a deficient number, since it is larger than the sum of its proper divisors (2056242622).

3975365378 is a wasteful number, since it uses less digits than its factorization.

3975365378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42089.

The product of its digits is 14288400, while the sum is 56.

The square root of 3975365378 is about 63050.4986340314. The cubic root of 3975365378 is about 1584.1355870677.

The spelling of 3975365378 in words is "three billion, nine hundred seventy-five million, three hundred sixty-five thousand, three hundred seventy-eight".