3159937891889 has 2 divisors, whose sum is σ = 3159937891890. Its totient is φ = 3159937891888.

The previous prime is 3159937891879. The next prime is 3159937891937. The reversal of 3159937891889 is 9881987399513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2797533891889 + 362404000000 = 1672583^2 + 602000^2 .

It is an emirp because it is prime and its reverse (9881987399513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3159937891889 - 2³² = 3155642924593 is a prime.

It is not a weakly prime, because it can be changed into another prime (3159937891879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1579968945944 + 1579968945945.

It is an arithmetic number, because the mean of its divisors is an integer number (1579968945945).

Almost surely, 2^{3159937891889} is an apocalyptic number.

It is an amenable number.

3159937891889 is a deficient number, since it is larger than the sum of its proper divisors (1).

3159937891889 is an equidigital number, since it uses as much as digits as its factorization.

3159937891889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1058158080, while the sum is 80.

The spelling of 3159937891889 in words is "three trillion, one hundred fifty-nine billion, nine hundred thirty-seven million, eight hundred ninety-one thousand, eight hundred eighty-nine".