505645361626 has 8 divisors (see below), whose sum is σ = 760860687060. Its totient is φ = 252025132608.

The previous prime is 505645361623. The next prime is 505645361657. The reversal of 505645361626 is 626163546505.

It can be written as a sum of positive squares in 2 ways, for example, as 457044954601 + 48600407025 = 676051^2 + 220455^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 505645361626.

It is not an unprimeable number, because it can be changed into a prime (505645361623) 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, 398773311 + ... + 398774578.

Almost surely, 2^505645361626 is an apocalyptic number.

505645361626 is a deficient number, since it is larger than the sum of its proper divisors (255215325434).

505645361626 is a wasteful number, since it uses less digits than its factorization.

505645361626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797548208.

The product of its (nonzero) digits is 3888000, while the sum is 49.

The spelling of 505645361626 in words is "five hundred five billion, six hundred forty-five million, three hundred sixty-one thousand, six hundred twenty-six".