514966609391 has 4 divisors (see below), whose sum is σ = 554579425512. Its totient is φ = 475353793272.

The previous prime is 514966609321. The next prime is 514966609411. The reversal of 514966609391 is 193906669415.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 514966609391 - 2³⁰ = 513892867567 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 514966609391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (514966609321) 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, 19806408041 + ... + 19806408066.

It is an arithmetic number, because the mean of its divisors is an integer number (138644856378).

Almost surely, 2^514966609391 is an apocalyptic number.

514966609391 is a deficient number, since it is larger than the sum of its proper divisors (39612816121).

514966609391 is a wasteful number, since it uses less digits than its factorization.

514966609391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39612816120.

The product of its (nonzero) digits is 9447840, while the sum is 59.

The spelling of 514966609391 in words is "five hundred fourteen billion, nine hundred sixty-six million, six hundred nine thousand, three hundred ninety-one".