2720729215 has 32 divisors (see below), whose sum is σ = 3490801920. Its totient is φ = 2028601344.

The previous prime is 2720729203. The next prime is 2720729237. The reversal of 2720729215 is 5129270272.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2720729215 is a prime.

It is a super-2 number, since 2×2720729215² = 14804734922709032450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5876074 + ... + 5876536.

It is an arithmetic number, because the mean of its divisors is an integer number (109087560).

Almost surely, 2^2720729215 is an apocalyptic number.

2720729215 is a deficient number, since it is larger than the sum of its proper divisors (770072705).

2720729215 is a wasteful number, since it uses less digits than its factorization.

2720729215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 2720729215 is about 52160.6098028004. The cubic root of 2720729215 is about 1396.0311428303.

Adding to 2720729215 its reverse (5129270272), we get a palindrome (7849999487).

The spelling of 2720729215 in words is "two billion, seven hundred twenty million, seven hundred twenty-nine thousand, two hundred fifteen".