10691685775 has 24 divisors (see below), whose sum is σ = 13413204000. Its totient is φ = 8453328000.

The previous prime is 10691685773. The next prime is 10691685791. The reversal of 10691685775 is 57758619601.

It is a happy number.

It is not a de Polignac number, because 10691685775 - 2¹ = 10691685773 is a prime.

It is a super-2 number, since 2×10691685775² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10691685773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1508941 + ... + 1516009.

It is an arithmetic number, because the mean of its divisors is an integer number (558883500).

Almost surely, 2^10691685775 is an apocalyptic number.

10691685775 is a deficient number, since it is larger than the sum of its proper divisors (2721518225).

10691685775 is a wasteful number, since it uses less digits than its factorization.

10691685775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7779 (or 7774 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 55.

The spelling of 10691685775 in words is "ten billion, six hundred ninety-one million, six hundred eighty-five thousand, seven hundred seventy-five".