43128851500 has 48 divisors (see below), whose sum is σ = 107649622080. Its totient is φ = 14787033600.

The previous prime is 43128851489. The next prime is 43128851543. The reversal of 43128851500 is 515882134.

It is a self number, because there is not a number n which added to its sum of digits gives 43128851500.

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, 6157765 + ... + 6164764.

It is an arithmetic number, because the mean of its divisors is an integer number (2242700460).

Almost surely, 2^43128851500 is an apocalyptic number.

It is an amenable number.

43128851500 is an abundant number, since it is smaller than the sum of its proper divisors (64520770580).

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

43128851500 is a wasteful number, since it uses less digits than its factorization.

43128851500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12322555 (or 12322543 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The spelling of 43128851500 in words is "forty-three billion, one hundred twenty-eight million, eight hundred fifty-one thousand, five hundred".