853909015005 has 40 divisors (see below), whose sum is σ = 1563279328512. Its totient is φ = 445728383712.

The previous prime is 853909014971. The next prime is 853909015031. The reversal of 853909015005 is 500510909358.

853909015005 is a `hidden beast` number, since 8 + 53 + 9 + 0 + 90 + 1 + 500 + 5 = 666.

It is not a de Polignac number, because 853909015005 - 2⁶ = 853909014941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 22410937 + ... + 22449006.

Almost surely, 2^853909015005 is an apocalyptic number.

It is an amenable number.

853909015005 is a deficient number, since it is larger than the sum of its proper divisors (709370313507).

853909015005 is a wasteful number, since it uses less digits than its factorization.

853909015005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44860007 (or 44859998 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 45.

The spelling of 853909015005 in words is "eight hundred fifty-three billion, nine hundred nine million, fifteen thousand, five".