12651622874487 has 32 divisors (see below), whose sum is σ = 18789524544960. Its totient is φ = 8413548433920.

The previous prime is 12651622874461. The next prime is 12651622874509. The reversal of 12651622874487 is 78447822615621.

12651622874487 is a `hidden beast` number, since 1 + 2 + 6 + 5 + 1 + 62 + 28 + 74 + 487 = 666.

It is not a de Polignac number, because 12651622874487 - 2²³ = 12651614485879 is a prime.

It is a super-2 number, since 2×12651622874487² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12651622874417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127908883 + ... + 128007755.

It is an arithmetic number, because the mean of its divisors is an integer number (587172642030).

Almost surely, 2^{12651622874487} is an apocalyptic number.

12651622874487 is a deficient number, since it is larger than the sum of its proper divisors (6137901670473).

12651622874487 is a wasteful number, since it uses less digits than its factorization.

12651622874487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110560 (or 110554 counting only the distinct ones).

The product of its digits is 72253440, while the sum is 63.

The spelling of 12651622874487 in words is "twelve trillion, six hundred fifty-one billion, six hundred twenty-two million, eight hundred seventy-four thousand, four hundred eighty-seven".