43045846778146 has 16 divisors (see below), whose sum is σ = 68424432645240. Its totient is φ = 20273905966720.

The previous prime is 43045846778141. The next prime is 43045846778161. The reversal of 43045846778146 is 64187764854034.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13593637172025 + 29452209606121 = 3686955^2 + 5426989^2 .

It is not an unprimeable number, because it can be changed into a prime (43045846778141) 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, 9050848501 + ... + 9050853256.

Almost surely, 2^{43045846778146} is an apocalyptic number.

43045846778146 is a deficient number, since it is larger than the sum of its proper divisors (25378585867094).

43045846778146 is a wasteful number, since it uses less digits than its factorization.

43045846778146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18101701829.

The product of its (nonzero) digits is 433520640, while the sum is 67.

The spelling of 43045846778146 in words is "forty-three trillion, forty-five billion, eight hundred forty-six million, seven hundred seventy-eight thousand, one hundred forty-six".