12540789465886 has 8 divisors (see below), whose sum is σ = 20521291853304. Its totient is φ = 5700358848120.

The previous prime is 12540789465871. The next prime is 12540789465913. The reversal of 12540789465886 is 68856498704521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285017942385 + ... + 285017942428.

It is an arithmetic number, because the mean of its divisors is an integer number (2565161481663).

Almost surely, 2^{12540789465886} is an apocalyptic number.

12540789465886 is a deficient number, since it is larger than the sum of its proper divisors (7980502387418).

12540789465886 is a wasteful number, since it uses less digits than its factorization.

12540789465886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570035884826.

The product of its (nonzero) digits is 928972800, while the sum is 73.

The spelling of 12540789465886 in words is "twelve trillion, five hundred forty billion, seven hundred eighty-nine million, four hundred sixty-five thousand, eight hundred eighty-six".