43255212140 has 48 divisors (see below), whose sum is σ = 105274681344. Its totient is φ = 14621476800.

The previous prime is 43255212139. The next prime is 43255212157. The reversal of 43255212140 is 4121255234.

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, 2165876 + ... + 2185755.

It is an arithmetic number, because the mean of its divisors is an integer number (2193222528).

Almost surely, 2^43255212140 is an apocalyptic number.

It is an amenable number.

43255212140 is an abundant number, since it is smaller than the sum of its proper divisors (62019469204).

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

43255212140 is a wasteful number, since it uses less digits than its factorization.

43255212140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4351718 (or 4351716 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 43255212140 its reverse (4121255234), we get a palindrome (47376467374).

The spelling of 43255212140 in words is "forty-three billion, two hundred fifty-five million, two hundred twelve thousand, one hundred forty".