9696278261 has 4 divisors (see below), whose sum is σ = 9786897792. Its totient is φ = 9605658732.

The previous prime is 9696278237. The next prime is 9696278269. The reversal of 9696278261 is 1628726969.

It is a happy number.

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: 1628726969 = 113 ⋅14413513.

It is a cyclic number.

It is not a de Polignac number, because 9696278261 - 2²² = 9692083957 is a prime.

It is a super-2 number, since 2×9696278261² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9696278197 and 9696278206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9696278269) 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 3 ways as a sum of consecutive naturals, for example, 45309605 + ... + 45309818.

It is an arithmetic number, because the mean of its divisors is an integer number (2446724448).

Almost surely, 2^9696278261 is an apocalyptic number.

It is an amenable number.

9696278261 is a deficient number, since it is larger than the sum of its proper divisors (90619531).

9696278261 is a wasteful number, since it uses less digits than its factorization.

9696278261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90619530.

The product of its digits is 3919104, while the sum is 56.

The square root of 9696278261 is about 98469.6819381478. The cubic root of 9696278261 is about 2132.3984430296.

The spelling of 9696278261 in words is "nine billion, six hundred ninety-six million, two hundred seventy-eight thousand, two hundred sixty-one".