9692749861 has 4 divisors (see below), whose sum is σ = 10114173792. Its totient is φ = 9271325932.

The previous prime is 9692749817. The next prime is 9692749873. The reversal of 9692749861 is 1689472969.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1689472969 = 107 ⋅15789467.

It is a cyclic number.

It is not a de Polignac number, because 9692749861 - 2²⁷ = 9558532133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9692749861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9692779861) 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, 210711931 + ... + 210711976.

It is an arithmetic number, because the mean of its divisors is an integer number (2528543448).

Almost surely, 2^9692749861 is an apocalyptic number.

It is an amenable number.

9692749861 is a deficient number, since it is larger than the sum of its proper divisors (421423931).

9692749861 is a wasteful number, since it uses less digits than its factorization.

9692749861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421423930.

The product of its digits is 11757312, while the sum is 61.

The square root of 9692749861 is about 98451.7641335085. The cubic root of 9692749861 is about 2132.1397572643.

The spelling of 9692749861 in words is "nine billion, six hundred ninety-two million, seven hundred forty-nine thousand, eight hundred sixty-one".