43357891128 has 32 divisors (see below), whose sum is σ = 114770889360. Its totient is φ = 13602475520.

The previous prime is 43357891121. The next prime is 43357891139. The reversal of 43357891128 is 82119875334.

It is a super-2 number, since 2×43357891128² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43357891121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53134263 + ... + 53135078.

Almost surely, 2^43357891128 is an apocalyptic number.

It is an amenable number.

43357891128 is an abundant number, since it is smaller than the sum of its proper divisors (71412998232).

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

43357891128 is a wasteful number, since it uses less digits than its factorization.

43357891128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106269367 (or 106269363 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The spelling of 43357891128 in words is "forty-three billion, three hundred fifty-seven million, eight hundred ninety-one thousand, one hundred twenty-eight".