969923971681 has 12 divisors (see below), whose sum is σ = 1132774055280. Its totient is φ = 828051189000.

The previous prime is 969923971673. The next prime is 969923971697. The reversal of 969923971681 is 186179329969.

It is not a de Polignac number, because 969923971681 - 2³ = 969923971673 is a prime.

It is a super-2 number, since 2×969923971681² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 969923971681.

It is not an unprimeable number, because it can be changed into a prime (969983971681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39418711 + ... + 39443308.

It is an arithmetic number, because the mean of its divisors is an integer number (94397837940).

Almost surely, 2^969923971681 is an apocalyptic number.

It is an amenable number.

969923971681 is a deficient number, since it is larger than the sum of its proper divisors (162850083599).

969923971681 is a wasteful number, since it uses less digits than its factorization.

969923971681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78862284 (or 78862277 counting only the distinct ones).

The product of its digits is 79361856, while the sum is 70.

The spelling of 969923971681 in words is "nine hundred sixty-nine billion, nine hundred twenty-three million, nine hundred seventy-one thousand, six hundred eighty-one".