7421123506 has 8 divisors (see below), whose sum is σ = 11164717980. Its totient is φ = 3699550848.

The previous prime is 7421123497. The next prime is 7421123597. The reversal of 7421123506 is 6053211247.

It can be written as a sum of positive squares in 2 ways, for example, as 6830196025 + 590927481 = 82645^2 + 24309^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 5504611 + ... + 5505958.

Almost surely, 2^7421123506 is an apocalyptic number.

7421123506 is a deficient number, since it is larger than the sum of its proper divisors (3743594474).

7421123506 is a wasteful number, since it uses less digits than its factorization.

7421123506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11010908.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 7421123506 is about 86145.9430617600. The cubic root of 7421123506 is about 1950.5476004049.

The spelling of 7421123506 in words is "seven billion, four hundred twenty-one million, one hundred twenty-three thousand, five hundred six".