7257012896 has 120 divisors (see below), whose sum is σ = 17247493620. Its totient is φ = 3001979904.

The previous prime is 7257012881. The next prime is 7257012901. The reversal of 7257012896 is 6982107527.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6938890000 + 318122896 = 83300^2 + 17836^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7257012896.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2226500 + ... + 2229756.

Almost surely, 2^7257012896 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 7257012896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8623746810).

7257012896 is an abundant number, since it is smaller than the sum of its proper divisors (9990480724).

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

7257012896 is an equidigital number, since it uses as much as digits as its factorization.

7257012896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3324 (or 3295 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 7257012896 is about 85188.1030191423. The cubic root of 7257012896 is about 1936.0621664577.

The spelling of 7257012896 in words is "seven billion, two hundred fifty-seven million, twelve thousand, eight hundred ninety-six".