6652489779 has 24 divisors (see below), whose sum is σ = 10892969360. Its totient is φ = 3878373312.

The previous prime is 6652489729. The next prime is 6652489799. The reversal of 6652489779 is 9779842566.

It is not a de Polignac number, because 6652489779 - 2⁸ = 6652489523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6652489729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1494064 + ... + 1498509.

Almost surely, 2^6652489779 is an apocalyptic number.

6652489779 is a deficient number, since it is larger than the sum of its proper divisors (4240479581).

6652489779 is a wasteful number, since it uses less digits than its factorization.

6652489779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2992611 (or 2992608 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 63.

The square root of 6652489779 is about 81562.7965373920. The cubic root of 6652489779 is about 1880.7370147695.

The spelling of 6652489779 in words is "six billion, six hundred fifty-two million, four hundred eighty-nine thousand, seven hundred seventy-nine".