7264857648 has 160 divisors (see below), whose sum is σ = 20214706176. Its totient is φ = 2242335744.

The previous prime is 7264857643. The next prime is 7264857653. The reversal of 7264857648 is 8467584627.

It is an interprime number because it is at equal distance from previous prime (7264857643) and next prime (7264857653).

It is not an unprimeable number, because it can be changed into a prime (7264857643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11968161 + ... + 11968767.

Almost surely, 2^7264857648 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 7264857648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10107353088).

7264857648 is an abundant number, since it is smaller than the sum of its proper divisors (12949848528).

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

7264857648 is a wasteful number, since it uses less digits than its factorization.

7264857648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971 (or 965 counting only the distinct ones).

The product of its digits is 18063360, while the sum is 57.

The square root of 7264857648 is about 85234.1342890277. The cubic root of 7264857648 is about 1936.7595359490.

The spelling of 7264857648 in words is "seven billion, two hundred sixty-four million, eight hundred fifty-seven thousand, six hundred forty-eight".