5187454650 has 264 divisors, whose sum is σ = 16606374624. Its totient is φ = 1180980000.

The previous prime is 5187454633. The next prime is 5187454687. The reversal of 5187454650 is 564547815.

5187454650 is a `hidden beast` number, since 5 + 187 + 4 + 5 + 465 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 5187454596 and 5187454605.

It is an unprimeable number.

It is a polite number, since it can be written in 131 ways as a sum of consecutive naturals, for example, 20667025 + ... + 20667275.

Almost surely, 2^5187454650 is an apocalyptic number.

5187454650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 5187454650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8303187312).

5187454650 is an abundant number, since it is smaller than the sum of its proper divisors (11418919974).

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

5187454650 is an equidigital number, since it uses as much as digits as its factorization.

5187454650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The square root of 5187454650 is about 72023.9866294556. The cubic root of 5187454650 is about 1731.0838486517.

The spelling of 5187454650 in words is "five billion, one hundred eighty-seven million, four hundred fifty-four thousand, six hundred fifty".