9649804879 has 16 divisors (see below), whose sum is σ = 11366498304. Its totient is φ = 8076549600.

The previous prime is 9649804861. The next prime is 9649804919. The reversal of 9649804879 is 9784089469.

It is a cyclic number.

It is not a de Polignac number, because 9649804879 - 2¹¹ = 9649802831 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 9649804879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9649804819) 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 15 ways as a sum of consecutive naturals, for example, 33327 + ... + 142864.

It is an arithmetic number, because the mean of its divisors is an integer number (710406144).

Almost surely, 2^9649804879 is an apocalyptic number.

9649804879 is a deficient number, since it is larger than the sum of its proper divisors (1716693425).

9649804879 is a wasteful number, since it uses less digits than its factorization.

9649804879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176598.

The product of its (nonzero) digits is 31352832, while the sum is 64.

The square root of 9649804879 is about 98233.4203771812. The cubic root of 9649804879 is about 2128.9861882422.

The spelling of 9649804879 in words is "nine billion, six hundred forty-nine million, eight hundred four thousand, eight hundred seventy-nine".