16973237961 has 32 divisors (see below), whose sum is σ = 25594982400. Its totient is φ = 11115014400.

The previous prime is 16973237959. The next prime is 16973237977.

It is a happy number.

16973237961 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 16973237961 - 2¹ = 16973237959 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16973237898 and 16973237907.

It is not an unprimeable number, because it can be changed into a prime (16973227961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 321825 + ... + 370833.

It is an arithmetic number, because the mean of its divisors is an integer number (799843200).

Almost surely, 2^16973237961 is an apocalyptic number.

It is an amenable number.

16973237961 is a deficient number, since it is larger than the sum of its proper divisors (8621744439).

16973237961 is a wasteful number, since it uses less digits than its factorization.

16973237961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49246 (or 49240 counting only the distinct ones).

The product of its digits is 2571912, while the sum is 54.

The spelling of 16973237961 in words is "sixteen billion, nine hundred seventy-three million, two hundred thirty-seven thousand, nine hundred sixty-one".