6511772830 has 16 divisors (see below), whose sum is σ = 11830736880. Its totient is φ = 2580365632.

The previous prime is 6511772821. The next prime is 6511772831. The reversal of 6511772830 is 382771156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6511772831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3041815 + ... + 3043954.

It is an arithmetic number, because the mean of its divisors is an integer number (739421055).

Almost surely, 2^6511772830 is an apocalyptic number.

6511772830 is a deficient number, since it is larger than the sum of its proper divisors (5318964050).

6511772830 is a wasteful number, since it uses less digits than its factorization.

6511772830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6085883.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 6511772830 is about 80695.5564451972. The cubic root of 6511772830 is about 1867.3816224223.

The spelling of 6511772830 in words is "six billion, five hundred eleven million, seven hundred seventy-two thousand, eight hundred thirty".