43856890212 has 24 divisors (see below), whose sum is σ = 102488047200. Its totient is φ = 14596777216.

The previous prime is 43856890177. The next prime is 43856890213. The reversal of 43856890212 is 21209865834.

It is not an unprimeable number, because it can be changed into a prime (43856890213) 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, 2765037 + ... + 2780852.

It is an arithmetic number, because the mean of its divisors is an integer number (4270335300).

Almost surely, 2^43856890212 is an apocalyptic number.

It is an amenable number.

43856890212 is an abundant number, since it is smaller than the sum of its proper divisors (58631156988).

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

43856890212 is a wasteful number, since it uses less digits than its factorization.

43856890212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5546555 (or 5546553 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 43856890212 in words is "forty-three billion, eight hundred fifty-six million, eight hundred ninety thousand, two hundred twelve".