512561322495 has 16 divisors (see below), whose sum is σ = 911220129120. Its totient is φ = 273366038592.

The previous prime is 512561322473. The next prime is 512561322499. The reversal of 512561322495 is 594223165215.

512561322495 is a `hidden beast` number, since 5 + 1 + 2 + 5 + 613 + 2 + 24 + 9 + 5 = 666.

It is not a de Polignac number, because 512561322495 - 2⁵ = 512561322463 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 512561322495.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512561322499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1898375134 + ... + 1898375403.

It is an arithmetic number, because the mean of its divisors is an integer number (56951258070).

Almost surely, 2^512561322495 is an apocalyptic number.

512561322495 is a deficient number, since it is larger than the sum of its proper divisors (398658806625).

512561322495 is a wasteful number, since it uses less digits than its factorization.

512561322495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3796750551 (or 3796750545 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The spelling of 512561322495 in words is "five hundred twelve billion, five hundred sixty-one million, three hundred twenty-two thousand, four hundred ninety-five".