6427121264487 has 24 divisors (see below), whose sum is σ = 11574382884480. Its totient is φ = 3338764292880.

The previous prime is 6427121264479. The next prime is 6427121264569. The reversal of 6427121264487 is 7844621217246.

6427121264487 is a `hidden beast` number, since 6 + 4 + 2 + 71 + 2 + 126 + 448 + 7 = 666.

It is not a de Polignac number, because 6427121264487 - 2³ = 6427121264479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6427121264687) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4637171937 + ... + 4637173322.

It is an arithmetic number, because the mean of its divisors is an integer number (482265953520).

Almost surely, 2^{6427121264487} is an apocalyptic number.

6427121264487 is a deficient number, since it is larger than the sum of its proper divisors (5147261619993).

6427121264487 is a wasteful number, since it uses less digits than its factorization.

6427121264487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9274345283 (or 9274345280 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 54.

The spelling of 6427121264487 in words is "six trillion, four hundred twenty-seven billion, one hundred twenty-one million, two hundred sixty-four thousand, four hundred eighty-seven".