83641835949 has 32 divisors (see below), whose sum is σ = 140819005440. Its totient is φ = 43028020992.

The previous prime is 83641835941. The next prime is 83641835987. The reversal of 83641835949 is 94953814638.

It is not a de Polignac number, because 83641835949 - 2³ = 83641835941 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 83641835892 and 83641835901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83641835941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5085069 + ... + 5101490.

It is an arithmetic number, because the mean of its divisors is an integer number (4400593920).

Almost surely, 2^83641835949 is an apocalyptic number.

It is an amenable number.

83641835949 is a deficient number, since it is larger than the sum of its proper divisors (57177169491).

83641835949 is a wasteful number, since it uses less digits than its factorization.

83641835949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10186609.

The product of its digits is 22394880, while the sum is 60.

The spelling of 83641835949 in words is "eighty-three billion, six hundred forty-one million, eight hundred thirty-five thousand, nine hundred forty-nine".