3813756831438 has 32 divisors (see below), whose sum is σ = 7655539910400. Its totient is φ = 1266587514816.

The previous prime is 3813756831419. The next prime is 3813756831449. The reversal of 3813756831438 is 8341386573183.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1647745 + ... + 3215987.

It is an arithmetic number, because the mean of its divisors is an integer number (239235622200).

Almost surely, 2^{3813756831438} is an apocalyptic number.

3813756831438 is an abundant number, since it is smaller than the sum of its proper divisors (3841783078962).

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

3813756831438 is a wasteful number, since it uses less digits than its factorization.

3813756831438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569736.

The product of its digits is 34836480, while the sum is 60.

The spelling of 3813756831438 in words is "three trillion, eight hundred thirteen billion, seven hundred fifty-six million, eight hundred thirty-one thousand, four hundred thirty-eight".