43407428688 has 160 divisors (see below), whose sum is σ = 134924142080. Its totient is φ = 13282030080.

The previous prime is 43407428683. The next prime is 43407428699. The reversal of 43407428688 is 88682470434.

It is a happy number.

43407428688 is a `hidden beast` number, since 43 + 407 + 42 + 86 + 88 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43407428683) 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, 995145 + ... + 1037847.

It is an arithmetic number, because the mean of its divisors is an integer number (843275888).

Almost surely, 2^43407428688 is an apocalyptic number.

43407428688 is a gapful number since it is divisible by the number (48) 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 43407428688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67462071040).

43407428688 is an abundant number, since it is smaller than the sum of its proper divisors (91516713392).

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

43407428688 is a wasteful number, since it uses less digits than its factorization.

43407428688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42914 (or 42902 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 54.

The spelling of 43407428688 in words is "forty-three billion, four hundred seven million, four hundred twenty-eight thousand, six hundred eighty-eight".