9677844155 has 16 divisors (see below), whose sum is σ = 13283580864. Its totient is φ = 6630681600.

The previous prime is 9677844109. The next prime is 9677844157. The reversal of 9677844155 is 5514487769.

It is a happy number.

It is not a de Polignac number, because 9677844155 - 2²⁶ = 9610735291 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 9677844155.

It is not an unprimeable number, because it can be changed into a prime (9677844157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73082 + ... + 157151.

It is an arithmetic number, because the mean of its divisors is an integer number (830223804).

Almost surely, 2^9677844155 is an apocalyptic number.

9677844155 is a deficient number, since it is larger than the sum of its proper divisors (3605736709).

9677844155 is a wasteful number, since it uses less digits than its factorization.

9677844155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231446.

The product of its digits is 8467200, while the sum is 56.

The square root of 9677844155 is about 98376.0344545357. The cubic root of 9677844155 is about 2131.0462473750.

The spelling of 9677844155 in words is "nine billion, six hundred seventy-seven million, eight hundred forty-four thousand, one hundred fifty-five".