961894189371 has 8 divisors (see below), whose sum is σ = 1282533065280. Its totient is φ = 641259053192.

The previous prime is 961894189369. The next prime is 961894189387. The reversal of 961894189371 is 173981498169.

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

It is a cyclic number.

It is not a de Polignac number, because 961894189371 - 2¹ = 961894189369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (961894189171) 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, 266505 + ... + 1412378.

It is an arithmetic number, because the mean of its divisors is an integer number (160316633160).

Almost surely, 2^961894189371 is an apocalyptic number.

961894189371 is a deficient number, since it is larger than the sum of its proper divisors (320638875909).

961894189371 is a wasteful number, since it uses less digits than its factorization.

961894189371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1869865.

The product of its digits is 23514624, while the sum is 66.

The spelling of 961894189371 in words is "nine hundred sixty-one billion, eight hundred ninety-four million, one hundred eighty-nine thousand, three hundred seventy-one".