720227851 has 24 divisors (see below), whose sum is σ = 872886240. Its totient is φ = 582045696.

The previous prime is 720227843. The next prime is 720227873. The reversal of 720227851 is 158722027.

It is not a de Polignac number, because 720227851 - 2³ = 720227843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720227821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 648885 + ... + 649993.

It is an arithmetic number, because the mean of its divisors is an integer number (36370260).

Almost surely, 2^720227851 is an apocalyptic number.

720227851 is a deficient number, since it is larger than the sum of its proper divisors (152658389).

720227851 is a wasteful number, since it uses less digits than its factorization.

720227851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411 (or 1392 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 720227851 is about 26837.0611468544. The cubic root of 720227851 is about 896.3754849466.

Adding to 720227851 its reverse (158722027), we get a palindrome (878949878).

It can be divided in two parts, 7202 and 27851, that added together give a palindrome (35053).

The spelling of 720227851 in words is "seven hundred twenty million, two hundred twenty-seven thousand, eight hundred fifty-one".