43185213380 has 24 divisors (see below), whose sum is σ = 90751510080. Its totient is φ = 17262168800.

The previous prime is 43185213361. The next prime is 43185213389. The reversal of 43185213380 is 8331258134.

It is a super-2 number, since 2×43185213380² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43185213389) 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, 715040 + ... + 773079.

It is an arithmetic number, because the mean of its divisors is an integer number (3781312920).

Almost surely, 2^43185213380 is an apocalyptic number.

It is an amenable number.

43185213380 is an abundant number, since it is smaller than the sum of its proper divisors (47566296700).

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

43185213380 is a wasteful number, since it uses less digits than its factorization.

43185213380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489579 (or 1489577 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 43185213380 in words is "forty-three billion, one hundred eighty-five million, two hundred thirteen thousand, three hundred eighty".