1645092688063 has 4 divisors (see below), whose sum is σ = 1794646568808. Its totient is φ = 1495538807320.

The previous prime is 1645092688061. The next prime is 1645092688073. The reversal of 1645092688063 is 3608862905461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1645092688063 - 2¹ = 1645092688061 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1645092687989 and 1645092688007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1645092688061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74776940356 + ... + 74776940377.

It is an arithmetic number, because the mean of its divisors is an integer number (448661642202).

Almost surely, 2^{1645092688063} is an apocalyptic number.

1645092688063 is a deficient number, since it is larger than the sum of its proper divisors (149553880745).

1645092688063 is a wasteful number, since it uses less digits than its factorization.

1645092688063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149553880744.

The product of its (nonzero) digits is 14929920, while the sum is 58.

The spelling of 1645092688063 in words is "one trillion, six hundred forty-five billion, ninety-two million, six hundred eighty-eight thousand, sixty-three".