3962151891 has 12 divisors (see below), whose sum is σ = 5862696840. Its totient is φ = 2577009120.

The previous prime is 3962151887. The next prime is 3962151901. The reversal of 3962151891 is 1981512693.

3962151891 is a `hidden beast` number, since 3 + 9 + 621 + 5 + 18 + 9 + 1 = 666.

It is not a de Polignac number, because 3962151891 - 2² = 3962151887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3962151811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5368401 + ... + 5369138.

It is an arithmetic number, because the mean of its divisors is an integer number (488558070).

Almost surely, 2^3962151891 is an apocalyptic number.

3962151891 is a deficient number, since it is larger than the sum of its proper divisors (1900544949).

3962151891 is a wasteful number, since it uses less digits than its factorization.

3962151891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10737586 (or 10737583 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 3962151891 is about 62945.6264644336. The cubic root of 3962151891 is about 1582.3784999895.

The spelling of 3962151891 in words is "three billion, nine hundred sixty-two million, one hundred fifty-one thousand, eight hundred ninety-one".