9697861819803 has 18 divisors (see below), whose sum is σ = 12951466105396. Its totient is φ = 6454766362328.

The previous prime is 9697861819783. The next prime is 9697861819837. The reversal of 9697861819803 is 3089181687969.

It is not a de Polignac number, because 9697861819803 - 2⁶ = 9697861819739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9697861819103) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4784341276 + ... + 4784343302.

Almost surely, 2^{9697861819803} is an apocalyptic number.

9697861819803 is a deficient number, since it is larger than the sum of its proper divisors (3253604285593).

9697861819803 is an frugal number, since it uses more digits than its factorization.

9697861819803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5831 (or 2917 counting only the distinct ones).

The product of its (nonzero) digits is 282175488, while the sum is 75.

Multiplying 9697861819803 by its sum of digits (75), we get a square (727339636485225 = 26969235²).

The spelling of 9697861819803 in words is "nine trillion, six hundred ninety-seven billion, eight hundred sixty-one million, eight hundred nineteen thousand, eight hundred three".