3813773840440 has 16 divisors (see below), whose sum is σ = 8580991141080. Its totient is φ = 1525509536160.

The previous prime is 3813773840419. The next prime is 3813773840447. The reversal of 3813773840440 is 440483773183.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3813773840447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47672172966 + ... + 47672173045.

Almost surely, 2^{3813773840440} is an apocalyptic number.

It is an amenable number.

3813773840440 is an abundant number, since it is smaller than the sum of its proper divisors (4767217300640).

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

3813773840440 is a wasteful number, since it uses less digits than its factorization.

3813773840440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95344346022 (or 95344346018 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 52.

The spelling of 3813773840440 in words is "three trillion, eight hundred thirteen billion, seven hundred seventy-three million, eight hundred forty thousand, four hundred forty".