5621489428 has 12 divisors (see below), whose sum is σ = 9839114740. Its totient is φ = 2810313792.

The previous prime is 5621489417. The next prime is 5621489443. The reversal of 5621489428 is 8249841265.

It can be written as a sum of positive squares in 2 ways, for example, as 5101102084 + 520387344 = 71422^2 + 22812^2 .

It is a super-2 number, since 2×5621489428² = 63202286778231534368, which contains 22 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77433 + ... + 131296.

Almost surely, 2^5621489428 is an apocalyptic number.

It is an amenable number.

5621489428 is a deficient number, since it is larger than the sum of its proper divisors (4217625312).

5621489428 is a wasteful number, since it uses less digits than its factorization.

5621489428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215466 (or 215464 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 49.

The square root of 5621489428 is about 74976.5925339369. The cubic root of 5621489428 is about 1778.0765980641.

The spelling of 5621489428 in words is "five billion, six hundred twenty-one million, four hundred eighty-nine thousand, four hundred twenty-eight".