3187398672 has 120 divisors (see below), whose sum is σ = 9230028288. Its totient is φ = 1026809280.

The previous prime is 3187398661. The next prime is 3187398691. The reversal of 3187398672 is 2768937813.

3187398672 is a `hidden beast` number, since 3 + 187 + 398 + 6 + 72 = 666.

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, 4289533 + ... + 4290275.

Almost surely, 2^3187398672 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 3187398672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4615014144).

3187398672 is an abundant number, since it is smaller than the sum of its proper divisors (6042629616).

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

3187398672 is an equidigital number, since it uses as much as digits as its factorization.

3187398672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850 (or 779 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 3187398672 is about 56457.0515701980. The cubic root of 3187398672 is about 1471.6757344371.

The spelling of 3187398672 in words is "three billion, one hundred eighty-seven million, three hundred ninety-eight thousand, six hundred seventy-two".