512695217493 has 16 divisors (see below), whose sum is σ = 784050035200. Its totient is φ = 330771107520.

The previous prime is 512695217483. The next prime is 512695217527. The reversal of 512695217493 is 394712596215.

512695217493 is a `hidden beast` number, since 5 + 1 + 26 + 9 + 521 + 7 + 4 + 93 = 666.

It is not a de Polignac number, because 512695217493 - 2¹² = 512695213397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512695217423) 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, 306268708 + ... + 306270381.

It is an arithmetic number, because the mean of its divisors is an integer number (49003127200).

Almost surely, 2^512695217493 is an apocalyptic number.

It is an amenable number.

512695217493 is a deficient number, since it is larger than the sum of its proper divisors (271354817707).

512695217493 is a wasteful number, since it uses less digits than its factorization.

512695217493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612539129 (or 612539123 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 54.

The spelling of 512695217493 in words is "five hundred twelve billion, six hundred ninety-five million, two hundred seventeen thousand, four hundred ninety-three".