43783438734 has 96 divisors (see below), whose sum is σ = 116240902560. Its totient is φ = 12171430656.

The previous prime is 43783438723. The next prime is 43783438781.

It is a happy number.

43783438734 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 125707 + ... + 321510.

It is an arithmetic number, because the mean of its divisors is an integer number (1210842735).

Almost surely, 2^43783438734 is an apocalyptic number.

43783438734 is an abundant number, since it is smaller than the sum of its proper divisors (72457463826).

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

43783438734 is a wasteful number, since it uses less digits than its factorization.

43783438734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447279 (or 447266 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 54.

The spelling of 43783438734 in words is "forty-three billion, seven hundred eighty-three million, four hundred thirty-eight thousand, seven hundred thirty-four".