3954558656 has 14 divisors (see below), whose sum is σ = 7847327460. Its totient is φ = 1977279296.

The previous prime is 3954558653. The next prime is 3954558719. The reversal of 3954558656 is 6568554593.

It is not an unprimeable number, because it can be changed into a prime (3954558653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30894926 + ... + 30895053.

It is an arithmetic number, because the mean of its divisors is an integer number (560523390).

Almost surely, 2^3954558656 is an apocalyptic number.

It is an amenable number.

3954558656 is a deficient number, since it is larger than the sum of its proper divisors (3892768804).

3954558656 is an equidigital number, since it uses as much as digits as its factorization.

3954558656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61789991 (or 61789981 counting only the distinct ones).

The product of its digits is 19440000, while the sum is 56.

The square root of 3954558656 is about 62885.2817120191. The cubic root of 3954558656 is about 1581.3670079257.

The spelling of 3954558656 in words is "three billion, nine hundred fifty-four million, five hundred fifty-eight thousand, six hundred fifty-six".