9709690969012 has 12 divisors (see below), whose sum is σ = 16992090089380. Its totient is φ = 4854808086336.

The previous prime is 9709690968997. The next prime is 9709690969019. The reversal of 9709690969012 is 2109690969079.

It can be written as a sum of positive squares in 2 ways, for example, as 7193520941476 + 2516170027536 = 2682074^2 + 1586244^2 .

It is a super-2 number, since 2×9709690969012² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (67) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9709690969019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8761263 + ... + 9807094.

Almost surely, 2^{9709690969012} is an apocalyptic number.

It is an amenable number.

9709690969012 is a deficient number, since it is larger than the sum of its proper divisors (7282399120368).

9709690969012 is a wasteful number, since it uses less digits than its factorization.

9709690969012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18699090 (or 18699088 counting only the distinct ones).

The product of its (nonzero) digits is 29760696, while the sum is 67.

Adding to 9709690969012 its sum of digits (67), we get a palindrome (9709690969079).

The spelling of 9709690969012 in words is "nine trillion, seven hundred nine billion, six hundred ninety million, nine hundred sixty-nine thousand, twelve".