6440760530 has 16 divisors (see below), whose sum is σ = 11594289024. Its totient is φ = 2576099760.

The previous prime is 6440760503. The next prime is 6440760563. The reversal of 6440760530 is 350670446.

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, 211145 + ... + 239715.

It is an arithmetic number, because the mean of its divisors is an integer number (724643064).

Almost surely, 2^6440760530 is an apocalyptic number.

6440760530 is a deficient number, since it is larger than the sum of its proper divisors (5153528494).

6440760530 is a wasteful number, since it uses less digits than its factorization.

6440760530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51121.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 6440760530 is about 80254.3489787314. The cubic root of 6440760530 is about 1860.5687290390.

The spelling of 6440760530 in words is "six billion, four hundred forty million, seven hundred sixty thousand, five hundred thirty".