7655220489 has 16 divisors (see below), whose sum is σ = 11717414912. Its totient is φ = 4354792848.

The previous prime is 7655220473. The next prime is 7655220491. The reversal of 7655220489 is 9840225567.

It is not a de Polignac number, because 7655220489 - 2⁴ = 7655220473 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (7655220589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 812659 + ... + 822024.

It is an arithmetic number, because the mean of its divisors is an integer number (732338432).

Almost surely, 2^7655220489 is an apocalyptic number.

It is an amenable number.

7655220489 is a deficient number, since it is larger than the sum of its proper divisors (4062194423).

7655220489 is a wasteful number, since it uses less digits than its factorization.

7655220489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634916.

The product of its (nonzero) digits is 1209600, while the sum is 48.

The square root of 7655220489 is about 87494.1168822224. The cubic root of 7655220489 is about 1970.8454451339.

The spelling of 7655220489 in words is "seven billion, six hundred fifty-five million, two hundred twenty thousand, four hundred eighty-nine".