9649976658 has 32 divisors (see below), whose sum is σ = 22172590080. Its totient is φ = 2742698640.

The previous prime is 9649976621. The next prime is 9649976663. The reversal of 9649976658 is 8566799469.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9649976592 and 9649976601.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 593448 + ... + 609491.

It is an arithmetic number, because the mean of its divisors is an integer number (692893440).

Almost surely, 2^9649976658 is an apocalyptic number.

9649976658 is an abundant number, since it is smaller than the sum of its proper divisors (12522613422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9649976658 is a wasteful number, since it uses less digits than its factorization.

9649976658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203142.

The product of its digits is 176359680, while the sum is 69.

The square root of 9649976658 is about 98234.2947142188. The cubic root of 9649976658 is about 2128.9988210693.

The spelling of 9649976658 in words is "nine billion, six hundred forty-nine million, nine hundred seventy-six thousand, six hundred fifty-eight".