43367978934 has 64 divisors (see below), whose sum is σ = 110332339200. Its totient is φ = 12369314304.

The previous prime is 43367978879. The next prime is 43367978939. The reversal of 43367978934 is 43987976334.

43367978934 is a `hidden beast` number, since 433 + 6 + 7 + 97 + 89 + 34 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43367978939) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118687 + ... + 317525.

It is an arithmetic number, because the mean of its divisors is an integer number (1723942800).

Almost surely, 2^43367978934 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43367978934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55166169600).

43367978934 is an abundant number, since it is smaller than the sum of its proper divisors (66964360266).

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

43367978934 is a wasteful number, since it uses less digits than its factorization.

43367978934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199434 (or 199428 counting only the distinct ones).

The product of its digits is 82301184, while the sum is 63.

The spelling of 43367978934 in words is "forty-three billion, three hundred sixty-seven million, nine hundred seventy-eight thousand, nine hundred thirty-four".