8457587228640 has 384 divisors, whose sum is σ = 29186839019520. Its totient is φ = 2041626470400.

The previous prime is 8457587228627. The next prime is 8457587228729. The reversal of 8457587228640 is 468227857548.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2100218307 + ... + 2100222333.

It is an arithmetic number, because the mean of its divisors is an integer number (76007393280).

Almost surely, 2^{8457587228640} is an apocalyptic number.

8457587228640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8457587228640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14593419509760).

8457587228640 is an abundant number, since it is smaller than the sum of its proper divisors (20729251790880).

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

8457587228640 is a wasteful number, since it uses less digits than its factorization.

8457587228640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5646 (or 5638 counting only the distinct ones).

The product of its (nonzero) digits is 240844800, while the sum is 66.

The spelling of 8457587228640 in words is "eight trillion, four hundred fifty-seven billion, five hundred eighty-seven million, two hundred twenty-eight thousand, six hundred forty".