853545233805 has 32 divisors (see below), whose sum is σ = 1577461143168. Its totient is φ = 389496576000.

The previous prime is 853545233777. The next prime is 853545233819. The reversal of 853545233805 is 508332545358.

It is not a de Polignac number, because 853545233805 - 2⁵ = 853545233773 is a prime.

It is a super-2 number, since 2×853545233805² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152144296 + ... + 152149905.

It is an arithmetic number, because the mean of its divisors is an integer number (49295660724).

Almost surely, 2^853545233805 is an apocalyptic number.

853545233805 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

853545233805 is a deficient number, since it is larger than the sum of its proper divisors (723915909363).

853545233805 is a wasteful number, since it uses less digits than its factorization.

853545233805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304294237.

The product of its (nonzero) digits is 8640000, while the sum is 51.

The spelling of 853545233805 in words is "eight hundred fifty-three billion, five hundred forty-five million, two hundred thirty-three thousand, eight hundred five".