8937779649 has 8 divisors (see below), whose sum is σ = 11917751040. Its totient is φ = 5958164016.

The previous prime is 8937779633. The next prime is 8937779659. The reversal of 8937779649 is 9469777398.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8937779649 - 2⁴ = 8937779633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8937779659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23422 + ... + 135735.

It is an arithmetic number, because the mean of its divisors is an integer number (1489718880).

Almost surely, 2^8937779649 is an apocalyptic number.

It is an amenable number.

8937779649 is a deficient number, since it is larger than the sum of its proper divisors (2979971391).

8937779649 is a wasteful number, since it uses less digits than its factorization.

8937779649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177879.

The product of its digits is 144027072, while the sum is 69.

The square root of 8937779649 is about 94539.8310184654. The cubic root of 8937779649 is about 2075.2792694426.

The spelling of 8937779649 in words is "eight billion, nine hundred thirty-seven million, seven hundred seventy-nine thousand, six hundred forty-nine".