84256147567 has 2 divisors, whose sum is σ = 84256147568. Its totient is φ = 84256147566.

The previous prime is 84256147559. The next prime is 84256147597. The reversal of 84256147567 is 76574165248.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84256147567 - 2³ = 84256147559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84256147597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42128073783 + 42128073784.

It is an arithmetic number, because the mean of its divisors is an integer number (42128073784).

Almost surely, 2^84256147567 is an apocalyptic number.

84256147567 is a deficient number, since it is larger than the sum of its proper divisors (1).

84256147567 is an equidigital number, since it uses as much as digits as its factorization.

84256147567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11289600, while the sum is 55.

The spelling of 84256147567 in words is "eighty-four billion, two hundred fifty-six million, one hundred forty-seven thousand, five hundred sixty-seven".