1645124373433 has 64 divisors (see below), whose sum is σ = 1796795965440. Its totient is φ = 1502601408000.

The previous prime is 1645124373427. The next prime is 1645124373443. The reversal of 1645124373433 is 3343734215461.

It is a de Polignac number, because none of the positive numbers 2^k-1645124373433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1645124373413) 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 63 ways as a sum of consecutive naturals, for example, 1673574660 + ... + 1673575642.

It is an arithmetic number, because the mean of its divisors is an integer number (28074936960).

Almost surely, 2^{1645124373433} is an apocalyptic number.

It is an amenable number.

1645124373433 is a deficient number, since it is larger than the sum of its proper divisors (151671592007).

1645124373433 is a wasteful number, since it uses less digits than its factorization.

1645124373433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390.

The product of its digits is 2177280, while the sum is 46.

Adding to 1645124373433 its reverse (3343734215461), we get a palindrome (4988858588894).

The spelling of 1645124373433 in words is "one trillion, six hundred forty-five billion, one hundred twenty-four million, three hundred seventy-three thousand, four hundred thirty-three".