6540627892 has 24 divisors (see below), whose sum is σ = 11566114560. Its totient is φ = 3236061600.

The previous prime is 6540627857. The next prime is 6540627901. The reversal of 6540627892 is 2987260456.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920409 + ... + 927487.

It is an arithmetic number, because the mean of its divisors is an integer number (481921440).

Almost surely, 2^6540627892 is an apocalyptic number.

It is an amenable number.

6540627892 is a deficient number, since it is larger than the sum of its proper divisors (5025486668).

6540627892 is a wasteful number, since it uses less digits than its factorization.

6540627892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9471 (or 9469 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The square root of 6540627892 is about 80874.1484777429. The cubic root of 6540627892 is about 1870.1358144373.

The spelling of 6540627892 in words is "six billion, five hundred forty million, six hundred twenty-seven thousand, eight hundred ninety-two".