5646393280 has 224 divisors, whose sum is σ = 15484815360. Its totient is φ = 1941012480.

The previous prime is 5646393239. The next prime is 5646393287. The reversal of 5646393280 is 823936465.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 5646393280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5646393287) 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, 7852761 + ... + 7853479.

It is an arithmetic number, because the mean of its divisors is an integer number (69128640).

Almost surely, 2^5646393280 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 5646393280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7742407680).

5646393280 is an abundant number, since it is smaller than the sum of its proper divisors (9838422080).

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

5646393280 is a wasteful number, since it uses less digits than its factorization.

5646393280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867 (or 857 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 46.

The square root of 5646393280 is about 75142.4865172826. The cubic root of 5646393280 is about 1780.6984255793.

The spelling of 5646393280 in words is "five billion, six hundred forty-six million, three hundred ninety-three thousand, two hundred eighty".