43522070399 has 4 divisors (see below), whose sum is σ = 43563091320. Its totient is φ = 43481049480.

The previous prime is 43522070393. The next prime is 43522070411. The reversal of 43522070399 is 99307022534.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43522070399 - 2⁸ = 43522070143 is a prime.

It is a super-2 number, since 2×43522070399² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43522070393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20508869 + ... + 20510990.

It is an arithmetic number, because the mean of its divisors is an integer number (10890772830).

Almost surely, 2^43522070399 is an apocalyptic number.

43522070399 is a deficient number, since it is larger than the sum of its proper divisors (41020921).

43522070399 is a wasteful number, since it uses less digits than its factorization.

43522070399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41020920.

The product of its (nonzero) digits is 408240, while the sum is 44.

The spelling of 43522070399 in words is "forty-three billion, five hundred twenty-two million, seventy thousand, three hundred ninety-nine".