1671187140019 has 2 divisors, whose sum is σ = 1671187140020. Its totient is φ = 1671187140018.

The previous prime is 1671187139957. The next prime is 1671187140031. The reversal of 1671187140019 is 9100417811761.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1671187140019 - 2²⁹ = 1670650269107 is a prime.

It is a super-2 number, since 2×1671187140019² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1671187140059) 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 as a sum of consecutive naturals, namely, 835593570009 + 835593570010.

It is an arithmetic number, because the mean of its divisors is an integer number (835593570010).

Almost surely, 2^{1671187140019} is an apocalyptic number.

1671187140019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1671187140019 is an equidigital number, since it uses as much as digits as its factorization.

1671187140019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 46.

The spelling of 1671187140019 in words is "one trillion, six hundred seventy-one billion, one hundred eighty-seven million, one hundred forty thousand, nineteen".