514851506691 has 16 divisors (see below), whose sum is σ = 720026635776. Its totient is φ = 326610003456.

The previous prime is 514851506671. The next prime is 514851506693. The reversal of 514851506691 is 196605158415.

It is not a de Polignac number, because 514851506691 - 2⁹ = 514851506179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (514851506693) 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, 19317295 + ... + 19343928.

It is an arithmetic number, because the mean of its divisors is an integer number (45001664736).

Almost surely, 2^514851506691 is an apocalyptic number.

514851506691 is a deficient number, since it is larger than the sum of its proper divisors (205175129085).

514851506691 is a wasteful number, since it uses less digits than its factorization.

514851506691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38661442.

The product of its (nonzero) digits is 1296000, while the sum is 51.

The spelling of 514851506691 in words is "five hundred fourteen billion, eight hundred fifty-one million, five hundred six thousand, six hundred ninety-one".