2720064989 has 8 divisors (see below), whose sum is σ = 2731462272. Its totient is φ = 2708687520.

The previous prime is 2720064973. The next prime is 2720065001. The reversal of 2720064989 is 9894600272.

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

It is a cyclic number.

It is not a de Polignac number, because 2720064989 - 2⁴ = 2720064973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2720064959) 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, 311132 + ... + 319754.

It is an arithmetic number, because the mean of its divisors is an integer number (341432784).

Almost surely, 2^2720064989 is an apocalyptic number.

It is an amenable number.

2720064989 is a deficient number, since it is larger than the sum of its proper divisors (11397283).

2720064989 is an equidigital number, since it uses as much as digits as its factorization.

2720064989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9907.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 2720064989 is about 52154.2422914953. The cubic root of 2720064989 is about 1395.9175267640.

The spelling of 2720064989 in words is "two billion, seven hundred twenty million, sixty-four thousand, nine hundred eighty-nine".