515719968 has 48 divisors (see below), whose sum is σ = 1397442816. Its totient is φ = 166360320.

The previous prime is 515719951. The next prime is 515719969. The reversal of 515719968 is 869917515.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 515719968.

It is not an unprimeable number, because it can be changed into a prime (515719969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83671 + ... + 89622.

It is an arithmetic number, because the mean of its divisors is an integer number (29113392).

Almost surely, 2^515719968 is an apocalyptic number.

It is an amenable number.

515719968 is an abundant number, since it is smaller than the sum of its proper divisors (881722848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

515719968 is a wasteful number, since it uses less digits than its factorization.

515719968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173337 (or 173329 counting only the distinct ones).

The product of its digits is 680400, while the sum is 51.

The square root of 515719968 is about 22709.4686859909. The cubic root of 515719968 is about 801.9328098801.

The spelling of 515719968 in words is "five hundred fifteen million, seven hundred nineteen thousand, nine hundred sixty-eight".