3167373817981 has 2 divisors, whose sum is σ = 3167373817982. Its totient is φ = 3167373817980.

The previous prime is 3167373817939. The next prime is 3167373818009. The reversal of 3167373817981 is 1897183737613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1859173155225 + 1308200662756 = 1363515^2 + 1143766^2 .

It is a cyclic number.

It is not a de Polignac number, because 3167373817981 - 2²³ = 3167365429373 is a prime.

It is a super-2 number, since 2×3167373817981² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3167376817981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1583686908990 + 1583686908991.

It is an arithmetic number, because the mean of its divisors is an integer number (1583686908991).

Almost surely, 2^{3167373817981} is an apocalyptic number.

It is an amenable number.

3167373817981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3167373817981 is an equidigital number, since it uses as much as digits as its factorization.

3167373817981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32006016, while the sum is 64.

The spelling of 3167373817981 in words is "three trillion, one hundred sixty-seven billion, three hundred seventy-three million, eight hundred seventeen thousand, nine hundred eighty-one".