1346920971871 has 2 divisors, whose sum is σ = 1346920971872. Its totient is φ = 1346920971870.

The previous prime is 1346920971863. The next prime is 1346920971887. The reversal of 1346920971871 is 1781790296431.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1346920971871 - 2³ = 1346920971863 is a prime.

It is a super-2 number, since 2×1346920971871² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1346920971811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 673460485935 + 673460485936.

It is an arithmetic number, because the mean of its divisors is an integer number (673460485936).

Almost surely, 2^{1346920971871} is an apocalyptic number.

1346920971871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1346920971871 is an equidigital number, since it uses as much as digits as its factorization.

1346920971871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4572288, while the sum is 58.

The spelling of 1346920971871 in words is "one trillion, three hundred forty-six billion, nine hundred twenty million, nine hundred seventy-one thousand, eight hundred seventy-one".