7421637216 has 72 divisors (see below), whose sum is σ = 22662513720. Its totient is φ = 2120466432.

The previous prime is 7421637187. The next prime is 7421637227. The reversal of 7421637216 is 6127361247.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 784161 + ... + 793568.

It is an arithmetic number, because the mean of its divisors is an integer number (314757135).

Almost surely, 2^7421637216 is an apocalyptic number.

It is an amenable number.

7421637216 is an abundant number, since it is smaller than the sum of its proper divisors (15240876504).

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

7421637216 is a wasteful number, since it uses less digits than its factorization.

7421637216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577756 (or 1577741 counting only the distinct ones).

The product of its digits is 84672, while the sum is 39.

The square root of 7421637216 is about 86148.9246363528. The cubic root of 7421637216 is about 1950.5926067388.

The spelling of 7421637216 in words is "seven billion, four hundred twenty-one million, six hundred thirty-seven thousand, two hundred sixteen".