961817838873 has 8 divisors (see below), whose sum is σ = 1282444699968. Its totient is φ = 641201435184.

The previous prime is 961817838847. The next prime is 961817838889. The reversal of 961817838873 is 378838718169.

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

It is not a de Polignac number, because 961817838873 - 2²⁵ = 961784284441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 961817838798 and 961817838807.

It is not an unprimeable number, because it can be changed into a prime (961817838803) 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 7 ways as a sum of consecutive naturals, for example, 2397165 + ... + 2769482.

It is an arithmetic number, because the mean of its divisors is an integer number (160305587496).

Almost surely, 2^961817838873 is an apocalyptic number.

It is an amenable number.

961817838873 is a deficient number, since it is larger than the sum of its proper divisors (320626861095).

961817838873 is a wasteful number, since it uses less digits than its factorization.

961817838873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5228703.

The product of its digits is 97542144, while the sum is 69.

The spelling of 961817838873 in words is "nine hundred sixty-one billion, eight hundred seventeen million, eight hundred thirty-eight thousand, eight hundred seventy-three".