43145543420 has 48 divisors (see below), whose sum is σ = 103567887360. Its totient is φ = 14790103104.

The previous prime is 43145543417. The next prime is 43145543437. The reversal of 43145543420 is 2434554134.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 855671 + ... + 904689.

It is an arithmetic number, because the mean of its divisors is an integer number (2157664320).

Almost surely, 2^43145543420 is an apocalyptic number.

It is an amenable number.

43145543420 is an abundant number, since it is smaller than the sum of its proper divisors (60422343940).

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

43145543420 is a wasteful number, since it uses less digits than its factorization.

43145543420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55322 (or 55320 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

The spelling of 43145543420 in words is "forty-three billion, one hundred forty-five million, five hundred forty-three thousand, four hundred twenty".