3781317376 has 72 divisors (see below), whose sum is σ = 7963628400. Its totient is φ = 1786982400.

The previous prime is 3781317347. The next prime is 3781317377. The reversal of 3781317376 is 6737131873.

It is a super-2 number, since 2×3781317376² = 28596722196079050752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3781317377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3409110 + ... + 3410218.

It is an arithmetic number, because the mean of its divisors is an integer number (110605950).

Almost surely, 2^3781317376 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 3781317376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3981814200).

3781317376 is an abundant number, since it is smaller than the sum of its proper divisors (4182311024).

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

3781317376 is a wasteful number, since it uses less digits than its factorization.

3781317376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845 (or 1831 counting only the distinct ones).

The product of its digits is 444528, while the sum is 46.

The square root of 3781317376 is about 61492.4172235894. The cubic root of 3781317376 is about 1557.9291742750.

The spelling of 3781317376 in words is "three billion, seven hundred eighty-one million, three hundred seventeen thousand, three hundred seventy-six".