3187812500 has 72 divisors (see below), whose sum is σ = 7043048376. Its totient is φ = 1262500000.

The previous prime is 3187812499. The next prime is 3187812521. The reversal of 3187812500 is 52187813.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 12 ways, for example, as 2903485456 + 284327044 = 53884^2 + 16862^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31562450 + ... + 31562550.

Almost surely, 2^3187812500 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 3187812500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3521524188).

3187812500 is an abundant number, since it is smaller than the sum of its proper divisors (3855235876).

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

3187812500 is an frugal number, since it uses more digits than its factorization.

3187812500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 3187812500 is about 56460.7164318697. The cubic root of 3187812500 is about 1471.7394221371.

The spelling of 3187812500 in words is "three billion, one hundred eighty-seven million, eight hundred twelve thousand, five hundred".