5626721388 has 12 divisors (see below), whose sum is σ = 13129016600. Its totient is φ = 1875573792.

The previous prime is 5626721339. The next prime is 5626721407. The reversal of 5626721388 is 8831276265.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 234446713 + ... + 234446736.

Almost surely, 2^5626721388 is an apocalyptic number.

It is an amenable number.

5626721388 is an abundant number, since it is smaller than the sum of its proper divisors (7502295212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5626721388 is a wasteful number, since it uses less digits than its factorization.

5626721388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468893456 (or 468893454 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The square root of 5626721388 is about 75011.4750421561. The cubic root of 5626721388 is about 1778.6280498445.

The spelling of 5626721388 in words is "five billion, six hundred twenty-six million, seven hundred twenty-one thousand, three hundred eighty-eight".