1671747845039 has 2 divisors, whose sum is σ = 1671747845040. Its totient is φ = 1671747845038.

The previous prime is 1671747845029. The next prime is 1671747845041. The reversal of 1671747845039 is 9305487471761.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1671747845039 - 2⁸ = 1671747844783 is a prime.

Together with 1671747845041, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1671747845029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835873922519 + 835873922520.

It is an arithmetic number, because the mean of its divisors is an integer number (835873922520).

Almost surely, 2^{1671747845039} is an apocalyptic number.

1671747845039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1671747845039 is an equidigital number, since it uses as much as digits as its factorization.

1671747845039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35562240, while the sum is 62.

The spelling of 1671747845039 in words is "one trillion, six hundred seventy-one billion, seven hundred forty-seven million, eight hundred forty-five thousand, thirty-nine".