43156423680 has 528 divisors, whose sum is σ = 149891886144. Its totient is φ = 10590289920.

The previous prime is 43156423643. The next prime is 43156423691. The reversal of 43156423680 is 8632465134.

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, 238433190 + ... + 238433370.

It is an arithmetic number, because the mean of its divisors is an integer number (283886148).

Almost surely, 2^43156423680 is an apocalyptic number.

43156423680 is a gapful number since it is divisible by the number (40) 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 43156423680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74945943072).

43156423680 is an abundant number, since it is smaller than the sum of its proper divisors (106735462464).

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

43156423680 is a wasteful number, since it uses less digits than its factorization.

43156423680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 43156423680 in words is "forty-three billion, one hundred fifty-six million, four hundred twenty-three thousand, six hundred eighty".