1380270172871 has 2 divisors, whose sum is σ = 1380270172872. Its totient is φ = 1380270172870.

The previous prime is 1380270172817. The next prime is 1380270172901. The reversal of 1380270172871 is 1782710720831.

Together with previous prime (1380270172817) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1380270172871 - 2³⁰ = 1379196431047 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1380279172871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690135086435 + 690135086436.

It is an arithmetic number, because the mean of its divisors is an integer number (690135086436).

Almost surely, 2^{1380270172871} is an apocalyptic number.

1380270172871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380270172871 is an equidigital number, since it uses as much as digits as its factorization.

1380270172871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 263424, while the sum is 47.

The spelling of 1380270172871 in words is "one trillion, three hundred eighty billion, two hundred seventy million, one hundred seventy-two thousand, eight hundred seventy-one".