1645830599327 has 2 divisors, whose sum is σ = 1645830599328. Its totient is φ = 1645830599326.

The previous prime is 1645830599297. The next prime is 1645830599341. The reversal of 1645830599327 is 7239950385461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1645830599327 - 2²⁰ = 1645829550751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1645830599327.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1645830599027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 822915299663 + 822915299664.

It is an arithmetic number, because the mean of its divisors is an integer number (822915299664).

It is a 1-persistent number, because it is pandigital, but 2⋅1645830599327 = 3291661198654 is not.

Almost surely, 2^{1645830599327} is an apocalyptic number.

1645830599327 is a deficient number, since it is larger than the sum of its proper divisors (1).

1645830599327 is an equidigital number, since it uses as much as digits as its factorization.

1645830599327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48988800, while the sum is 62.

The spelling of 1645830599327 in words is "one trillion, six hundred forty-five billion, eight hundred thirty million, five hundred ninety-nine thousand, three hundred twenty-seven".