6520974652 has 12 divisors (see below), whose sum is σ = 11414018056. Its totient is φ = 3259826640.

The previous prime is 6520974637. The next prime is 6520974661. The reversal of 6520974652 is 2564790256.

It is a super-2 number, since 2×6520974652² = 85046220824053042208, which contains 22 as substring.

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, 142623 + ... + 182710.

Almost surely, 2^6520974652 is an apocalyptic number.

It is an amenable number.

6520974652 is a deficient number, since it is larger than the sum of its proper divisors (4893043404).

6520974652 is a wasteful number, since it uses less digits than its factorization.

6520974652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330348 (or 330346 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 46.

The square root of 6520974652 is about 80752.5519844420. The cubic root of 6520974652 is about 1868.2608108373.

The spelling of 6520974652 in words is "six billion, five hundred twenty million, nine hundred seventy-four thousand, six hundred fifty-two".