3681871250 has 20 divisors (see below), whose sum is σ = 6901301814. Its totient is φ = 1472748000.

The previous prime is 3681871247. The next prime is 3681871253. The reversal of 3681871250 is 521781863.

It is an interprime number because it is at equal distance from previous prime (3681871247) and next prime (3681871253).

It can be written as a sum of positive squares in 5 ways, for example, as 799362529 + 2882508721 = 28273^2 + 53689^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3681871198 and 3681871207.

It is not an unprimeable number, because it can be changed into a prime (3681871253) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1471499 + ... + 1473998.

Almost surely, 2^3681871250 is an apocalyptic number.

3681871250 is a deficient number, since it is larger than the sum of its proper divisors (3219430564).

3681871250 is an equidigital number, since it uses as much as digits as its factorization.

3681871250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945519 (or 2945504 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 3681871250 is about 60678.4249136380. The cubic root of 3681871250 is about 1544.1501664398.

The spelling of 3681871250 in words is "three billion, six hundred eighty-one million, eight hundred seventy-one thousand, two hundred fifty".