6515920930 has 16 divisors (see below), whose sum is σ = 12238599744. Its totient is φ = 2493047920.

The previous prime is 6515920891. The next prime is 6515920981. The reversal of 6515920930 is 390295156.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14164816 + ... + 14165275.

It is an arithmetic number, because the mean of its divisors is an integer number (764912484).

Almost surely, 2^6515920930 is an apocalyptic number.

6515920930 is a deficient number, since it is larger than the sum of its proper divisors (5722678814).

6515920930 is a wasteful number, since it uses less digits than its factorization.

6515920930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28330121.

The product of its (nonzero) digits is 72900, while the sum is 40.

The square root of 6515920930 is about 80721.2545120552. The cubic root of 6515920930 is about 1867.7780552474.

The spelling of 6515920930 in words is "six billion, five hundred fifteen million, nine hundred twenty thousand, nine hundred thirty".