7421456616 has 32 divisors (see below), whose sum is σ = 21204162240. Its totient is φ = 2120416128.

The previous prime is 7421456611. The next prime is 7421456681. The reversal of 7421456616 is 6166541247.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (7421456611) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 22087501 + ... + 22087836.

It is an arithmetic number, because the mean of its divisors is an integer number (662630070).

Almost surely, 2^7421456616 is an apocalyptic number.

It is an amenable number.

7421456616 is an abundant number, since it is smaller than the sum of its proper divisors (13782705624).

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

7421456616 is a wasteful number, since it uses less digits than its factorization.

7421456616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44175353 (or 44175349 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 7421456616 is about 86147.8764450987. The cubic root of 7421456616 is about 1950.5767845389.

The spelling of 7421456616 in words is "seven billion, four hundred twenty-one million, four hundred fifty-six thousand, six hundred sixteen".