3961642275 has 18 divisors (see below), whose sum is σ = 7095741900. Its totient is φ = 2112875760.

The previous prime is 3961642273. The next prime is 3961642283. The reversal of 3961642275 is 5722461693.

3961642275 is a `hidden beast` number, since 3 + 9 + 616 + 4 + 2 + 27 + 5 = 666.

3961642275 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3961642275 - 2¹ = 3961642273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 3961642275.

It is not an unprimeable number, because it can be changed into a prime (3961642271) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8803425 + ... + 8803874.

Almost surely, 2^3961642275 is an apocalyptic number.

3961642275 is a deficient number, since it is larger than the sum of its proper divisors (3134099625).

3961642275 is a wasteful number, since it uses less digits than its factorization.

3961642275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17607315 (or 17607307 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 3961642275 is about 62941.5782690584. The cubic root of 3961642275 is about 1582.3106547041.

The spelling of 3961642275 in words is "three billion, nine hundred sixty-one million, six hundred forty-two thousand, two hundred seventy-five".