3956540018 has 8 divisors (see below), whose sum is σ = 6095210412. Its totient is φ = 1924803216.

The previous prime is 3956540011. The next prime is 3956540099. The reversal of 3956540018 is 8100456593.

It can be written as a sum of positive squares in 2 ways, for example, as 3141266209 + 815273809 = 56047^2 + 28553^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3956540011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26733305 + ... + 26733452.

Almost surely, 2^3956540018 is an apocalyptic number.

3956540018 is a deficient number, since it is larger than the sum of its proper divisors (2138670394).

3956540018 is a wasteful number, since it uses less digits than its factorization.

3956540018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53466796.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 3956540018 is about 62901.0335209208. The cubic root of 3956540018 is about 1581.6310691967.

The spelling of 3956540018 in words is "three billion, nine hundred fifty-six million, five hundred forty thousand, eighteen".