5393499280 has 80 divisors (see below), whose sum is σ = 13523978160. Its totient is φ = 1988573184.

The previous prime is 5393499247. The next prime is 5393499311. The reversal of 5393499280 is 829943935.

It can be written as a sum of positive squares in 8 ways, for example, as 1015824384 + 4377674896 = 31872^2 + 66164^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 800566 + ... + 807274.

It is an arithmetic number, because the mean of its divisors is an integer number (169049727).

Almost surely, 2^5393499280 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 5393499280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6761989080).

5393499280 is an abundant number, since it is smaller than the sum of its proper divisors (8130478880).

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

5393499280 is a wasteful number, since it uses less digits than its factorization.

5393499280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7508 (or 7502 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 52.

The square root of 5393499280 is about 73440.4471663946. The cubic root of 5393499280 is about 1753.7063520649.

The spelling of 5393499280 in words is "five billion, three hundred ninety-three million, four hundred ninety-nine thousand, two hundred eighty".