43143026856 has 64 divisors (see below), whose sum is σ = 114971520000. Its totient is φ = 13451645376.

The previous prime is 43143026851. The next prime is 43143026863. The reversal of 43143026856 is 65862034134.

It is a super-2 number, since 2×43143026856² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43143026851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 562786 + ... + 634833.

It is an arithmetic number, because the mean of its divisors is an integer number (1796430000).

Almost surely, 2^43143026856 is an apocalyptic number.

It is an amenable number.

43143026856 is an abundant number, since it is smaller than the sum of its proper divisors (71828493144).

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

43143026856 is a wasteful number, since it uses less digits than its factorization.

43143026856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197726 (or 1197722 counting only the distinct ones).

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

The spelling of 43143026856 in words is "forty-three billion, one hundred forty-three million, twenty-six thousand, eight hundred fifty-six".