961998473272825 has 24 divisors (see below), whose sum is σ = 1204859322139392. Its totient is φ = 761899575457920.

The previous prime is 961998473272813. The next prime is 961998473272901. The reversal of 961998473272825 is 528272374899169.

It is not a de Polignac number, because 961998473272825 - 2²⁹ = 961997936401913 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 381407149 + ... + 383921098.

It is an arithmetic number, because the mean of its divisors is an integer number (50202471755808).

Almost surely, 2^{961998473272825} is an apocalyptic number.

It is an amenable number.

961998473272825 is a deficient number, since it is larger than the sum of its proper divisors (242860848866567).

961998473272825 is a wasteful number, since it uses less digits than its factorization.

961998473272825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765328761 (or 765328756 counting only the distinct ones).

The product of its digits is 6584094720, while the sum is 82.

The spelling of 961998473272825 in words is "nine hundred sixty-one trillion, nine hundred ninety-eight billion, four hundred seventy-three million, two hundred seventy-two thousand, eight hundred twenty-five".