645413314546 has 64 divisors (see below), whose sum is σ = 1303339758336. Its totient is φ = 231494112000.

The previous prime is 645413314529. The next prime is 645413314619.

645413314546 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×645413314546² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 645413314496 and 645413314505.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 314596 + ... + 1178896.

It is an arithmetic number, because the mean of its divisors is an integer number (20364683724).

Almost surely, 2^645413314546 is an apocalyptic number.

645413314546 is an abundant number, since it is smaller than the sum of its proper divisors (657926443790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

645413314546 is a wasteful number, since it uses less digits than its factorization.

645413314546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864707.

The product of its digits is 2073600, while the sum is 46.

It can be divided in two parts, 645413 and 314546, that added together give a palindrome (959959).

The spelling of 645413314546 in words is "six hundred forty-five billion, four hundred thirteen million, three hundred fourteen thousand, five hundred forty-six".