3961033918 has 16 divisors (see below), whose sum is σ = 6208081056. Its totient is φ = 1891901440.

The previous prime is 3961033913. The next prime is 3961033931. The reversal of 3961033918 is 8193301693.

It is a happy number.

3961033918 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3961033913) 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, 21571 + ... + 91582.

It is an arithmetic number, because the mean of its divisors is an integer number (388005066).

Almost surely, 2^3961033918 is an apocalyptic number.

3961033918 is a deficient number, since it is larger than the sum of its proper divisors (2247047138).

3961033918 is a wasteful number, since it uses less digits than its factorization.

3961033918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113939.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 3961033918 is about 62936.7453718414. The cubic root of 3961033918 is about 1582.2296563896.

The spelling of 3961033918 in words is "three billion, nine hundred sixty-one million, thirty-three thousand, nine hundred eighteen".