3963978626 has 8 divisors (see below), whose sum is σ = 6258913680. Its totient is φ = 1877674068.

The previous prime is 3963978563. The next prime is 3963978653. The reversal of 3963978626 is 6268793693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 52157576 + ... + 52157651.

It is an arithmetic number, because the mean of its divisors is an integer number (782364210).

Almost surely, 2^3963978626 is an apocalyptic number.

3963978626 is a deficient number, since it is larger than the sum of its proper divisors (2294935054).

3963978626 is a wasteful number, since it uses less digits than its factorization.

3963978626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104315248.

The product of its digits is 17635968, while the sum is 59.

The square root of 3963978626 is about 62960.1352126884. The cubic root of 3963978626 is about 1582.6216458146.

The spelling of 3963978626 in words is "three billion, nine hundred sixty-three million, nine hundred seventy-eight thousand, six hundred twenty-six".