3957868884923 has 2 divisors, whose sum is σ = 3957868884924. Its totient is φ = 3957868884922.

The previous prime is 3957868884911. The next prime is 3957868884973. The reversal of 3957868884923 is 3294888687593.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3294888687593) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3957868884923 - 2⁶ = 3957868884859 is a prime.

It is a super-2 number, since 2×3957868884923² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (3957868884973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1978934442461 + 1978934442462.

It is an arithmetic number, because the mean of its divisors is an integer number (1978934442462).

Almost surely, 2^{3957868884923} is an apocalyptic number.

3957868884923 is a deficient number, since it is larger than the sum of its proper divisors (1).

3957868884923 is an equidigital number, since it uses as much as digits as its factorization.

3957868884923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5016453120, while the sum is 80.

The spelling of 3957868884923 in words is "three trillion, nine hundred fifty-seven billion, eight hundred sixty-eight million, eight hundred eighty-four thousand, nine hundred twenty-three".