7421643126 has 48 divisors (see below), whose sum is σ = 16512245568. Its totient is φ = 2407708800.

The previous prime is 7421643109. The next prime is 7421643137. The reversal of 7421643126 is 6213461247.

7421643126 is a `hidden beast` number, since 7 + 4 + 2 + 1 + 643 + 1 + 2 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 298755 + ... + 322641.

It is an arithmetic number, because the mean of its divisors is an integer number (344005116).

Almost surely, 2^7421643126 is an apocalyptic number.

7421643126 is an abundant number, since it is smaller than the sum of its proper divisors (9090602442).

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

7421643126 is a wasteful number, since it uses less digits than its factorization.

7421643126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24357 (or 24354 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 7421643126 is about 86148.9589374126. The cubic root of 7421643126 is about 1950.5931245041.

The spelling of 7421643126 in words is "seven billion, four hundred twenty-one million, six hundred forty-three thousand, one hundred twenty-six".