5287786380 has 96 divisors (see below), whose sum is σ = 16486041600. Its totient is φ = 1407063744.

The previous prime is 5287786379. The next prime is 5287786381. The reversal of 5287786380 is 836877825.

5287786380 is a `hidden beast` number, since 528 + 7 + 7 + 86 + 38 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (5287786379) and next prime (5287786381).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (5287786381) 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, 248439 + ... + 268881.

It is an arithmetic number, because the mean of its divisors is an integer number (171729600).

Almost surely, 2^5287786380 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 5287786380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8243020800).

5287786380 is an abundant number, since it is smaller than the sum of its proper divisors (11198255220).

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

5287786380 is a wasteful number, since it uses less digits than its factorization.

5287786380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20940 (or 20932 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The square root of 5287786380 is about 72717.1670240254. The cubic root of 5287786380 is about 1742.1730875152.

The spelling of 5287786380 in words is "five billion, two hundred eighty-seven million, seven hundred eighty-six thousand, three hundred eighty".