43305253311138 has 64 divisors (see below), whose sum is σ = 110036177190912. Its totient is φ = 11052741003840.

The previous prime is 43305253311113. The next prime is 43305253311179. The reversal of 43305253311138 is 83111335250334.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 43305253311138.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1279235506 + ... + 1279269357.

It is an arithmetic number, because the mean of its divisors is an integer number (1719315268608).

Almost surely, 2^{43305253311138} is an apocalyptic number.

43305253311138 is an abundant number, since it is smaller than the sum of its proper divisors (66730923879774).

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

43305253311138 is a wasteful number, since it uses less digits than its factorization.

43305253311138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2558504919.

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 43305253311138 in words is "forty-three trillion, three hundred five billion, two hundred fifty-three million, three hundred eleven thousand, one hundred thirty-eight".