6458451974827 has 2 divisors, whose sum is σ = 6458451974828. Its totient is φ = 6458451974826.

The previous prime is 6458451974789. The next prime is 6458451974879. The reversal of 6458451974827 is 7284791548546.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6458451974827 is a prime.

It is a super-2 number, since 2×6458451974827² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6458451974327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3229225987413 + 3229225987414.

It is an arithmetic number, because the mean of its divisors is an integer number (3229225987414).

Almost surely, 2^{6458451974827} is an apocalyptic number.

6458451974827 is a deficient number, since it is larger than the sum of its proper divisors (1).

6458451974827 is an equidigital number, since it uses as much as digits as its factorization.

6458451974827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 541900800, while the sum is 70.

The spelling of 6458451974827 in words is "six trillion, four hundred fifty-eight billion, four hundred fifty-one million, nine hundred seventy-four thousand, eight hundred twenty-seven".