43137443832 has 128 divisors (see below), whose sum is σ = 131009840640. Its totient is φ = 11554652160.

The previous prime is 43137443821. The next prime is 43137443887. The reversal of 43137443832 is 23834473134.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 704607 + ... + 763377.

It is an arithmetic number, because the mean of its divisors is an integer number (1023514380).

Almost surely, 2^43137443832 is an apocalyptic number.

43137443832 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43137443832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65504920320).

43137443832 is an abundant number, since it is smaller than the sum of its proper divisors (87872396808).

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

43137443832 is a wasteful number, since it uses less digits than its factorization.

43137443832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59061 (or 59057 counting only the distinct ones).

The product of its digits is 580608, while the sum is 42.

The spelling of 43137443832 in words is "forty-three billion, one hundred thirty-seven million, four hundred forty-three thousand, eight hundred thirty-two".