3873378918 has 32 divisors (see below), whose sum is σ = 7815595392. Its totient is φ = 1279678400.

The previous prime is 3873378911. The next prime is 3873378919. The reversal of 3873378918 is 8198733783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3873378911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 746473 + ... + 751643.

It is an arithmetic number, because the mean of its divisors is an integer number (244237356).

Almost surely, 2^3873378918 is an apocalyptic number.

3873378918 is an abundant number, since it is smaller than the sum of its proper divisors (3942216474).

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

3873378918 is a wasteful number, since it uses less digits than its factorization.

3873378918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6260.

The product of its digits is 6096384, while the sum is 57.

The square root of 3873378918 is about 62236.4757839002. The cubic root of 3873378918 is about 1570.4712661559.

The spelling of 3873378918 in words is "three billion, eight hundred seventy-three million, three hundred seventy-eight thousand, nine hundred eighteen".