505213612445 has 16 divisors (see below), whose sum is σ = 610567205952. Its totient is φ = 401301786240.

The previous prime is 505213612373. The next prime is 505213612457. The reversal of 505213612445 is 544216312505.

It is not a de Polignac number, because 505213612445 - 2¹⁶ = 505213546909 is a prime.

It is a Smith number, since the sum of its digits (38) 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 = 505213612399 and 505213612408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 541850 + ... + 1141940.

It is an arithmetic number, because the mean of its divisors is an integer number (38160450372).

Almost surely, 2^505213612445 is an apocalyptic number.

It is an amenable number.

505213612445 is a deficient number, since it is larger than the sum of its proper divisors (105353593507).

505213612445 is a wasteful number, since it uses less digits than its factorization.

505213612445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601292.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 505213612445 in words is "five hundred five billion, two hundred thirteen million, six hundred twelve thousand, four hundred forty-five".