7267664384 has 60 divisors (see below), whose sum is σ = 15180503646. Its totient is φ = 3475709952.

The previous prime is 7267664381. The next prime is 7267664389. The reversal of 7267664384 is 4834667627.

It can be written as a sum of positive squares in only one way, i.e., 7101769984 + 165894400 = 84272^2 + 12880^2 .

It is not an unprimeable number, because it can be changed into a prime (7267664381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 257432 + ... + 284264.

Almost surely, 2^7267664384 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 7267664384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7590251823).

7267664384 is an abundant number, since it is smaller than the sum of its proper divisors (7912839262).

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

7267664384 is an equidigital number, since it uses as much as digits as its factorization.

7267664384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26897 (or 26858 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 53.

The square root of 7267664384 is about 85250.5975580230. The cubic root of 7267664384 is about 1937.0089224740.

The spelling of 7267664384 in words is "seven billion, two hundred sixty-seven million, six hundred sixty-four thousand, three hundred eighty-four".