5166787500 has 396 divisors, whose sum is σ = 19374103728. Its totient is φ = 1180980000.

The previous prime is 5166787469. The next prime is 5166787511. The reversal of 5166787500 is 57876615.

5166787500 is a `hidden beast` number, since 5 + 1 + 6 + 67 + 87 + 500 = 666.

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

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, 738112497 + ... + 738112503.

Almost surely, 2^5166787500 is an apocalyptic number.

5166787500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5166787500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9687051864).

5166787500 is an abundant number, since it is smaller than the sum of its proper divisors (14207316228).

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

5166787500 is an frugal number, since it uses more digits than its factorization.

5166787500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66 (or 17 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 5166787500 is about 71880.3693646603. The cubic root of 5166787500 is about 1728.7818727331.

The spelling of 5166787500 in words is "five billion, one hundred sixty-six million, seven hundred eighty-seven thousand, five hundred".