854394329953 has 2 divisors, whose sum is σ = 854394329954. Its totient is φ = 854394329952.

The previous prime is 854394329879. The next prime is 854394329959. The reversal of 854394329953 is 359923493458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 845347847184 + 9046482769 = 919428^2 + 95113^2 .

It is a cyclic number.

It is not a de Polignac number, because 854394329953 - 2²¹ = 854392232801 is a prime.

It is not a weakly prime, because it can be changed into another prime (854394329959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427197164976 + 427197164977.

It is an arithmetic number, because the mean of its divisors is an integer number (427197164977).

Almost surely, 2^854394329953 is an apocalyptic number.

It is an amenable number.

854394329953 is a deficient number, since it is larger than the sum of its proper divisors (1).

854394329953 is an equidigital number, since it uses as much as digits as its factorization.

854394329953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 125971200, while the sum is 64.

The spelling of 854394329953 in words is "eight hundred fifty-four billion, three hundred ninety-four million, three hundred twenty-nine thousand, nine hundred fifty-three".