43542328212 has 72 divisors (see below), whose sum is σ = 113982252384. Its totient is φ = 14005728576.

The previous prime is 43542328163. The next prime is 43542328213. The reversal of 43542328212 is 21282324534.

43542328212 is a `hidden beast` number, since 4 + 3 + 542 + 32 + 82 + 1 + 2 = 666.

It is a super-2 number, since 2×43542328212² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43542328213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40963 + ... + 297930.

Almost surely, 2^43542328212 is an apocalyptic number.

It is an amenable number.

43542328212 is an abundant number, since it is smaller than the sum of its proper divisors (70439924172).

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

43542328212 is a wasteful number, since it uses less digits than its factorization.

43542328212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339029 (or 339024 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The spelling of 43542328212 in words is "forty-three billion, five hundred forty-two million, three hundred twenty-eight thousand, two hundred twelve".