3953957378 has 16 divisors (see below), whose sum is σ = 6779735424. Its totient is φ = 1694172480.

The previous prime is 3953957377. The next prime is 3953957387. The reversal of 3953957378 is 8737593593.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3953957377) 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, 38123 + ... + 96753.

It is an arithmetic number, because the mean of its divisors is an integer number (423733464).

Almost surely, 2^3953957378 is an apocalyptic number.

3953957378 is a deficient number, since it is larger than the sum of its proper divisors (2825778046).

3953957378 is a wasteful number, since it uses less digits than its factorization.

3953957378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63457.

The product of its digits is 21432600, while the sum is 59.

The square root of 3953957378 is about 62880.5007772680. The cubic root of 3953957378 is about 1581.2868565974.

The spelling of 3953957378 in words is "three billion, nine hundred fifty-three million, nine hundred fifty-seven thousand, three hundred seventy-eight".