3956855745 has 8 divisors (see below), whose sum is σ = 6330969216. Its totient is φ = 2110323056.

The previous prime is 3956855741. The next prime is 3956855753. The reversal of 3956855745 is 5475586593.

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

It is a cyclic number.

It is not a de Polignac number, because 3956855745 - 2² = 3956855741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3956855741) 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, 131895177 + ... + 131895206.

It is an arithmetic number, because the mean of its divisors is an integer number (791371152).

Almost surely, 2^3956855745 is an apocalyptic number.

It is an amenable number.

3956855745 is a deficient number, since it is larger than the sum of its proper divisors (2374113471).

3956855745 is a wasteful number, since it uses less digits than its factorization.

3956855745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263790391.

The product of its digits is 22680000, while the sum is 57.

The square root of 3956855745 is about 62903.5431831944. The cubic root of 3956855745 is about 1581.6731388120.

The spelling of 3956855745 in words is "three billion, nine hundred fifty-six million, eight hundred fifty-five thousand, seven hundred forty-five".