1645286024423 has 4 divisors (see below), whose sum is σ = 1646777671968. Its totient is φ = 1643794376880.

The previous prime is 1645286024323. The next prime is 1645286024443. The reversal of 1645286024423 is 3244206825461.

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 1645286024423 - 2³² = 1640991057127 is a prime.

It is a super-2 number, since 2×1645286024423² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1645286024443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745822118 + ... + 745824323.

It is an arithmetic number, because the mean of its divisors is an integer number (411694417992).

Almost surely, 2^{1645286024423} is an apocalyptic number.

1645286024423 is a deficient number, since it is larger than the sum of its proper divisors (1491647545).

1645286024423 is a wasteful number, since it uses less digits than its factorization.

1645286024423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491647544.

The product of its (nonzero) digits is 2211840, while the sum is 47.

The spelling of 1645286024423 in words is "one trillion, six hundred forty-five billion, two hundred eighty-six million, twenty-four thousand, four hundred twenty-three".