854394329879 has 2 divisors, whose sum is σ = 854394329880. Its totient is φ = 854394329878.

The previous prime is 854394329809. The next prime is 854394329953. The reversal of 854394329879 is 978923493458.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 854394329879 - 2²⁴ = 854377552663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (854394329809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427197164939 + 427197164940.

It is an arithmetic number, because the mean of its divisors is an integer number (427197164940).

Almost surely, 2^854394329879 is an apocalyptic number.

854394329879 is a deficient number, since it is larger than the sum of its proper divisors (1).

854394329879 is an equidigital number, since it uses as much as digits as its factorization.

854394329879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 470292480, while the sum is 71.

The spelling of 854394329879 in words is "eight hundred fifty-four billion, three hundred ninety-four million, three hundred twenty-nine thousand, eight hundred seventy-nine".