1742872887149 has 2 divisors, whose sum is σ = 1742872887150. Its totient is φ = 1742872887148.

The previous prime is 1742872887143. The next prime is 1742872887157. The reversal of 1742872887149 is 9417882782471.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1166119216900 + 576753670249 = 1079870^2 + 759443^2 .

It is a cyclic number.

It is not a de Polignac number, because 1742872887149 - 2⁸ = 1742872886893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1742872887143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 871436443574 + 871436443575.

It is an arithmetic number, because the mean of its divisors is an integer number (871436443575).

Almost surely, 2^{1742872887149} is an apocalyptic number.

It is an amenable number.

1742872887149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1742872887149 is an equidigital number, since it uses as much as digits as its factorization.

1742872887149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 101154816, while the sum is 68.

The spelling of 1742872887149 in words is "one trillion, seven hundred forty-two billion, eight hundred seventy-two million, eight hundred eighty-seven thousand, one hundred forty-nine".