5211786240 has 528 divisors, whose sum is σ = 19313199360. Its totient is φ = 1347010560.

The previous prime is 5211786227. The next prime is 5211786263. The reversal of 5211786240 is 426871125.

5211786240 is a `hidden beast` number, since 5 + 21 + 1 + 7 + 8 + 624 + 0 = 666.

It is a super-2 number, since 2×5211786240² = 54325431622906675200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 5211786195 and 5211786204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73405405 + ... + 73405475.

Almost surely, 2^5211786240 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 5211786240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9656599680).

5211786240 is an abundant number, since it is smaller than the sum of its proper divisors (14101413120).

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

5211786240 is an equidigital number, since it uses as much as digits as its factorization.

5211786240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 5211786240 is about 72192.7021242452. The cubic root of 5211786240 is about 1733.7861591400.

The spelling of 5211786240 in words is "five billion, two hundred eleven million, seven hundred eighty-six thousand, two hundred forty".