853496357505 has 24 divisors (see below), whose sum is σ = 1501025002176. Its totient is φ = 413816414880.

The previous prime is 853496357473. The next prime is 853496357507. The reversal of 853496357505 is 505753694358.

It is not a de Polignac number, because 853496357505 - 2⁵ = 853496357473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (853496357507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 235121149 + ... + 235124778.

It is an arithmetic number, because the mean of its divisors is an integer number (62542708424).

Almost surely, 2^853496357505 is an apocalyptic number.

It is an amenable number.

853496357505 is a deficient number, since it is larger than the sum of its proper divisors (647528644671).

853496357505 is a wasteful number, since it uses less digits than its factorization.

853496357505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470245957 (or 470245946 counting only the distinct ones).

The product of its (nonzero) digits is 68040000, while the sum is 60.

The spelling of 853496357505 in words is "eight hundred fifty-three billion, four hundred ninety-six million, three hundred fifty-seven thousand, five hundred five".