43711868838 has 64 divisors (see below), whose sum is σ = 98702841600. Its totient is φ = 12783711360.

The previous prime is 43711868821. The next prime is 43711868869. The reversal of 43711868838 is 83886811734.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6969568 + ... + 6975836.

It is an arithmetic number, because the mean of its divisors is an integer number (1542231900).

Almost surely, 2^43711868838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43711868838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49351420800).

43711868838 is an abundant number, since it is smaller than the sum of its proper divisors (54990972762).

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

43711868838 is a wasteful number, since it uses less digits than its factorization.

43711868838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9957.

The product of its digits is 6193152, while the sum is 57.

The spelling of 43711868838 in words is "forty-three billion, seven hundred eleven million, eight hundred sixty-eight thousand, eight hundred thirty-eight".