9613649377 has 4 divisors (see below), whose sum is σ = 9614617236. Its totient is φ = 9612681520.

The previous prime is 9613649333. The next prime is 9613649387. The reversal of 9613649377 is 7739463169.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5647672801 + 3965976576 = 75151^2 + 62976^2 .

It is a cyclic number.

It is not a de Polignac number, because 9613649377 - 2²⁷ = 9479431649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9613649327) 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, 468874 + ... + 488947.

It is an arithmetic number, because the mean of its divisors is an integer number (2403654309).

Almost surely, 2^9613649377 is an apocalyptic number.

It is an amenable number.

9613649377 is a deficient number, since it is larger than the sum of its proper divisors (967859).

9613649377 is a wasteful number, since it uses less digits than its factorization.

9613649377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967858.

The product of its digits is 5143824, while the sum is 55.

The square root of 9613649377 is about 98049.2191554833. The cubic root of 9613649377 is about 2126.3239271557.

The spelling of 9613649377 in words is "nine billion, six hundred thirteen million, six hundred forty-nine thousand, three hundred seventy-seven".