7421430556 has 24 divisors (see below), whose sum is σ = 13238388800. Its totient is φ = 3639384000.

The previous prime is 7421430551. The next prime is 7421430557. The reversal of 7421430556 is 6550341247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7421430551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41581 + ... + 128731.

Almost surely, 2^7421430556 is an apocalyptic number.

It is an amenable number.

7421430556 is a deficient number, since it is larger than the sum of its proper divisors (5816958244).

7421430556 is a wasteful number, since it uses less digits than its factorization.

7421430556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87565 (or 87563 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 7421430556 is about 86147.7251934141. The cubic root of 7421430556 is about 1950.5745014251.

The spelling of 7421430556 in words is "seven billion, four hundred twenty-one million, four hundred thirty thousand, five hundred fifty-six".