1645875441179 has 2 divisors, whose sum is σ = 1645875441180. Its totient is φ = 1645875441178.

The previous prime is 1645875441169. The next prime is 1645875441241. The reversal of 1645875441179 is 9711445785461.

It is an a-pointer prime, because the next prime (1645875441241) can be obtained adding 1645875441179 to its sum of digits (62).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1645875441179 is a prime.

It is not a weakly prime, because it can be changed into another prime (1645875441169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 822937720589 + 822937720590.

It is an arithmetic number, because the mean of its divisors is an integer number (822937720590).

Almost surely, 2^{1645875441179} is an apocalyptic number.

1645875441179 is a deficient number, since it is larger than the sum of its proper divisors (1).

1645875441179 is an equidigital number, since it uses as much as digits as its factorization.

1645875441179 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33868800, while the sum is 62.

The spelling of 1645875441179 in words is "one trillion, six hundred forty-five billion, eight hundred seventy-five million, four hundred forty-one thousand, one hundred seventy-nine".