7221714864 has 480 divisors, whose sum is σ = 25458370560. Its totient is φ = 1741824000.

The previous prime is 7221714859. The next prime is 7221714881. The reversal of 7221714864 is 4684171227.

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

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

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 95 ways as a sum of consecutive naturals, for example, 18009064 + ... + 18009464.

It is an arithmetic number, because the mean of its divisors is an integer number (53038272).

Almost surely, 2^7221714864 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 7221714864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12729185280).

7221714864 is an abundant number, since it is smaller than the sum of its proper divisors (18236655696).

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

7221714864 is a wasteful number, since it uses less digits than its factorization.

7221714864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489 (or 476 counting only the distinct ones).

The product of its digits is 150528, while the sum is 42.

The square root of 7221714864 is about 84980.6734734434. The cubic root of 7221714864 is about 1932.9180681894.

The spelling of 7221714864 in words is "seven billion, two hundred twenty-one million, seven hundred fourteen thousand, eight hundred sixty-four".