516403768 has 8 divisors (see below), whose sum is σ = 968257080. Its totient is φ = 258201880.

The previous prime is 516403759. The next prime is 516403777. The reversal of 516403768 is 867304615.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (516403759) and next prime (516403777).

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 516403768.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32275228 + ... + 32275243.

It is an arithmetic number, because the mean of its divisors is an integer number (121032135).

Almost surely, 2^516403768 is an apocalyptic number.

It is an amenable number.

516403768 is a deficient number, since it is larger than the sum of its proper divisors (451853312).

516403768 is a wasteful number, since it uses less digits than its factorization.

516403768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64550477 (or 64550473 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 516403768 is about 22724.5190928213. The cubic root of 516403768 is about 802.2870844915.

The spelling of 516403768 in words is "five hundred sixteen million, four hundred three thousand, seven hundred sixty-eight".