32685634431 has 20 divisors (see below), whose sum is σ = 51396516600. Its totient is φ = 20643557616.

The previous prime is 32685634417. The next prime is 32685634439. The reversal of 32685634431 is 13443658623.

32685634431 is a `hidden beast` number, since 3 + 2 + 6 + 8 + 5 + 634 + 4 + 3 + 1 = 666.

It is not a de Polignac number, because 32685634431 - 2⁹ = 32685633919 is a prime.

It is a super-2 number, since 2×32685634431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32685634439) 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 19 ways as a sum of consecutive naturals, for example, 10617576 + ... + 10620653.

It is an arithmetic number, because the mean of its divisors is an integer number (2569825830).

Almost surely, 2^32685634431 is an apocalyptic number.

32685634431 is a deficient number, since it is larger than the sum of its proper divisors (18710882169).

32685634431 is a wasteful number, since it uses less digits than its factorization.

32685634431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21238260 (or 21238251 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 45.

The spelling of 32685634431 in words is "thirty-two billion, six hundred eighty-five million, six hundred thirty-four thousand, four hundred thirty-one".