7257415880 has 256 divisors, whose sum is σ = 20172499200. Its totient is φ = 2313400320.

The previous prime is 7257415877. The next prime is 7257415931. The reversal of 7257415880 is 885147527.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 11113634 + ... + 11114286.

It is an arithmetic number, because the mean of its divisors is an integer number (78798825).

Almost surely, 2^7257415880 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 7257415880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10086249600).

7257415880 is an abundant number, since it is smaller than the sum of its proper divisors (12915083320).

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

7257415880 is a wasteful number, since it uses less digits than its factorization.

7257415880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 47.

The square root of 7257415880 is about 85190.4682461600. The cubic root of 7257415880 is about 1936.0980024895.

The spelling of 7257415880 in words is "seven billion, two hundred fifty-seven million, four hundred fifteen thousand, eight hundred eighty".