84642024671 has 2 divisors, whose sum is σ = 84642024672. Its totient is φ = 84642024670.

The previous prime is 84642024653. The next prime is 84642024673. The reversal of 84642024671 is 17642024648.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84642024671 - 2²² = 84637830367 is a prime.

Together with 84642024673, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84642024673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42321012335 + 42321012336.

It is an arithmetic number, because the mean of its divisors is an integer number (42321012336).

Almost surely, 2^84642024671 is an apocalyptic number.

84642024671 is a deficient number, since it is larger than the sum of its proper divisors (1).

84642024671 is an equidigital number, since it uses as much as digits as its factorization.

84642024671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 516096, while the sum is 44.

The spelling of 84642024671 in words is "eighty-four billion, six hundred forty-two million, twenty-four thousand, six hundred seventy-one".