43109775345 has 64 divisors (see below), whose sum is σ = 86867472384. Its totient is φ = 17768298240.

The previous prime is 43109775323. The next prime is 43109775383. The reversal of 43109775345 is 54357790134.

It is a happy number.

It is not a de Polignac number, because 43109775345 - 2¹³ = 43109767153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43109775294 and 43109775303.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 308541 + ... + 425930.

It is an arithmetic number, because the mean of its divisors is an integer number (1357304256).

Almost surely, 2^43109775345 is an apocalyptic number.

It is an amenable number.

43109775345 is an abundant number, since it is smaller than the sum of its proper divisors (43757697039).

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

43109775345 is a wasteful number, since it uses less digits than its factorization.

43109775345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734542.

The product of its (nonzero) digits is 1587600, while the sum is 48.

The spelling of 43109775345 in words is "forty-three billion, one hundred nine million, seven hundred seventy-five thousand, three hundred forty-five".