6480509758 has 4 divisors (see below), whose sum is σ = 9720764640. Its totient is φ = 3240254878.

The previous prime is 6480509743. The next prime is 6480509801. The reversal of 6480509758 is 8579050846.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8579050846 = 2 ⋅4289525423.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1620127438 + ... + 1620127441.

It is an arithmetic number, because the mean of its divisors is an integer number (2430191160).

Almost surely, 2^6480509758 is an apocalyptic number.

6480509758 is a deficient number, since it is larger than the sum of its proper divisors (3240254882).

6480509758 is a wasteful number, since it uses less digits than its factorization.

6480509758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3240254881.

The product of its (nonzero) digits is 2419200, while the sum is 52.

The square root of 6480509758 is about 80501.6133875589. The cubic root of 6480509758 is about 1864.3883892234.

The spelling of 6480509758 in words is "six billion, four hundred eighty million, five hundred nine thousand, seven hundred fifty-eight".