7421707216 has 80 divisors (see below), whose sum is σ = 17950815360. Its totient is φ = 2887856640.

The previous prime is 7421707207. The next prime is 7421707243. The reversal of 7421707216 is 6127071247.

It is a super-4 number, since 4×7421707216⁴ (a number of 41 digits) contains 4444 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1077030 + ... + 1083898.

It is an arithmetic number, because the mean of its divisors is an integer number (224385192).

Almost surely, 2^7421707216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7421707216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8975407680).

7421707216 is an abundant number, since it is smaller than the sum of its proper divisors (10529108144).

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

7421707216 is a wasteful number, since it uses less digits than its factorization.

7421707216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7772 (or 7766 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 7421707216 is about 86149.3309086031. The cubic root of 7421707216 is about 1950.5987393054.

The spelling of 7421707216 in words is "seven billion, four hundred twenty-one million, seven hundred seven thousand, two hundred sixteen".