961894189372 has 12 divisors (see below), whose sum is σ = 1683344801656. Its totient is φ = 480938531760.

The previous prime is 961894189369. The next prime is 961894189387. The reversal of 961894189372 is 273981498169.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 961894189298 and 961894189307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1884579 + ... + 2339962.

Almost surely, 2^961894189372 is an apocalyptic number.

It is an amenable number.

961894189372 is a deficient number, since it is larger than the sum of its proper divisors (721450612284).

961894189372 is a wasteful number, since it uses less digits than its factorization.

961894189372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4281468 (or 4281466 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 67.

The spelling of 961894189372 in words is "nine hundred sixty-one billion, eight hundred ninety-four million, one hundred eighty-nine thousand, three hundred seventy-two".