853409735215 has 8 divisors (see below), whose sum is σ = 1024380913248. Its totient is φ = 682534967520.

The previous prime is 853409735081. The next prime is 853409735219. The reversal of 853409735215 is 512537904358.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 853409735215 - 2¹⁵ = 853409702447 is a prime.

It is a super-2 number, since 2×853409735215² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853409735219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24083107 + ... + 24118516.

It is an arithmetic number, because the mean of its divisors is an integer number (128047614156).

Almost surely, 2^853409735215 is an apocalyptic number.

853409735215 is a deficient number, since it is larger than the sum of its proper divisors (170971178033).

853409735215 is a wasteful number, since it uses less digits than its factorization.

853409735215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48205169.

The product of its (nonzero) digits is 4536000, while the sum is 52.

The spelling of 853409735215 in words is "eight hundred fifty-three billion, four hundred nine million, seven hundred thirty-five thousand, two hundred fifteen".