5387749920 has 432 divisors, whose sum is σ = 22133343960. Its totient is φ = 1188569088.

The previous prime is 5387749897. The next prime is 5387749951. The reversal of 5387749920 is 299477835.

5387749920 is a `hidden beast` number, since 53 + 87 + 7 + 499 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3487138704 + 1900611216 = 59052^2 + 43596^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2044924 + ... + 2047556.

Almost surely, 2^5387749920 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 5387749920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11066671980).

5387749920 is an abundant number, since it is smaller than the sum of its proper divisors (16745594040).

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

5387749920 is a wasteful number, since it uses less digits than its factorization.

5387749920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2697 (or 2679 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The square root of 5387749920 is about 73401.2937215687. The cubic root of 5387749920 is about 1753.0829921397.

The spelling of 5387749920 in words is "five billion, three hundred eighty-seven million, seven hundred forty-nine thousand, nine hundred twenty".