6513992073 has 6 divisors (see below), whose sum is σ = 9409099674. Its totient is φ = 4342661376.

The previous prime is 6513992059. The next prime is 6513992101. The reversal of 6513992073 is 3702993156.

6513992073 is a `hidden beast` number, since 6 + 51 + 399 + 207 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3319142544 + 3194849529 = 57612^2 + 56523^2 .

It is not a de Polignac number, because 6513992073 - 2²⁰ = 6512943497 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6513992003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 361888440 + ... + 361888457.

It is an arithmetic number, because the mean of its divisors is an integer number (1568183279).

Almost surely, 2^6513992073 is an apocalyptic number.

It is an amenable number.

6513992073 is a deficient number, since it is larger than the sum of its proper divisors (2895107601).

6513992073 is a wasteful number, since it uses less digits than its factorization.

6513992073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723776903 (or 723776900 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 45.

The square root of 6513992073 is about 80709.3059875997. The cubic root of 6513992073 is about 1867.5937358261.

The spelling of 6513992073 in words is "six billion, five hundred thirteen million, nine hundred ninety-two thousand, seventy-three".