2620721327 has 16 divisors (see below), whose sum is σ = 3022356480. Its totient is φ = 2225942208.

The previous prime is 2620721293. The next prime is 2620721339. The reversal of 2620721327 is 7231270262.

It is not a de Polignac number, because 2620721327 - 2¹⁴ = 2620704943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2620721293 and 2620721302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620721347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1144778 + ... + 1147064.

It is an arithmetic number, because the mean of its divisors is an integer number (188897280).

Almost surely, 2^2620721327 is an apocalyptic number.

2620721327 is a deficient number, since it is larger than the sum of its proper divisors (401635153).

2620721327 is a wasteful number, since it uses less digits than its factorization.

2620721327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3710.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 2620721327 is about 51192.9812278988. The cubic root of 2620721327 is about 1378.7121863570.

Adding to 2620721327 its reverse (7231270262), we get a palindrome (9851991589).

The spelling of 2620721327 in words is "two billion, six hundred twenty million, seven hundred twenty-one thousand, three hundred twenty-seven".