84674390123 has 2 divisors, whose sum is σ = 84674390124. Its totient is φ = 84674390122.

The previous prime is 84674390113. The next prime is 84674390137. The reversal of 84674390123 is 32109347648.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84674390123 - 2⁸ = 84674389867 is a prime.

It is not a weakly prime, because it can be changed into another prime (84674390113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42337195061 + 42337195062.

It is an arithmetic number, because the mean of its divisors is an integer number (42337195062).

Almost surely, 2^84674390123 is an apocalyptic number.

84674390123 is a deficient number, since it is larger than the sum of its proper divisors (1).

84674390123 is an equidigital number, since it uses as much as digits as its factorization.

84674390123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 84674390123 in words is "eighty-four billion, six hundred seventy-four million, three hundred ninety thousand, one hundred twenty-three".