516343639 has 16 divisors (see below), whose sum is σ = 621907200. Its totient is φ = 418785984.

The previous prime is 516343609. The next prime is 516343643. The reversal of 516343639 is 936343615.

It is a cyclic number.

It is not a de Polignac number, because 516343639 - 2¹⁹ = 515819351 is a prime.

It is a super-2 number, since 2×516343639² = 533221507071524642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516343609) 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, 144132 + ... + 147670.

It is an arithmetic number, because the mean of its divisors is an integer number (38869200).

Almost surely, 2^516343639 is an apocalyptic number.

516343639 is a deficient number, since it is larger than the sum of its proper divisors (105563561).

516343639 is a wasteful number, since it uses less digits than its factorization.

516343639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4662.

The product of its digits is 174960, while the sum is 40.

The square root of 516343639 is about 22723.1960560129. The cubic root of 516343639 is about 802.2559443930.

The spelling of 516343639 in words is "five hundred sixteen million, three hundred forty-three thousand, six hundred thirty-nine".