3953818042 has 8 divisors (see below), whose sum is σ = 5953804596. Its totient is φ = 1969216512.

The previous prime is 3953818007. The next prime is 3953818079. The reversal of 3953818042 is 2408183593.

It can be written as a sum of positive squares in 2 ways, for example, as 2641857201 + 1311960841 = 51399^2 + 36221^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 3953818042.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3845613 + ... + 3846640.

Almost surely, 2^3953818042 is an apocalyptic number.

3953818042 is a deficient number, since it is larger than the sum of its proper divisors (1999986554).

3953818042 is a wasteful number, since it uses less digits than its factorization.

3953818042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7692512.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 3953818042 is about 62879.3928246767. The cubic root of 3953818042 is about 1581.2682817240.

The spelling of 3953818042 in words is "three billion, nine hundred fifty-three million, eight hundred eighteen thousand, forty-two".