6515402264 has 16 divisors (see below), whose sum is σ = 13961576400. Its totient is φ = 2792315232.

The previous prime is 6515402239. The next prime is 6515402287. The reversal of 6515402264 is 4622045156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58173179 + ... + 58173290.

It is an arithmetic number, because the mean of its divisors is an integer number (872598525).

Almost surely, 2^6515402264 is an apocalyptic number.

It is an amenable number.

6515402264 is an abundant number, since it is smaller than the sum of its proper divisors (7446174136).

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

6515402264 is a wasteful number, since it uses less digits than its factorization.

6515402264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116346482 (or 116346478 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 6515402264 is about 80718.0417502803. The cubic root of 6515402264 is about 1867.7284956795.

The spelling of 6515402264 in words is "six billion, five hundred fifteen million, four hundred two thousand, two hundred sixty-four".