853436268406384 has 20 divisors (see below), whose sum is σ = 1780727598502216. Its totient is φ = 393893662341312.

The previous prime is 853436268406333. The next prime is 853436268406387. The reversal of 853436268406384 is 483604862634358.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853436268406387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2051529491154 + ... + 2051529491569.

Almost surely, 2^{853436268406384} is an apocalyptic number.

It is an amenable number.

853436268406384 is an abundant number, since it is smaller than the sum of its proper divisors (927291330095832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

853436268406384 is a wasteful number, since it uses less digits than its factorization.

853436268406384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4103058982744 (or 4103058982738 counting only the distinct ones).

The product of its (nonzero) digits is 1911029760, while the sum is 70.

The spelling of 853436268406384 in words is "eight hundred fifty-three trillion, four hundred thirty-six billion, two hundred sixty-eight million, four hundred six thousand, three hundred eighty-four".