43040047633 has 6 divisors (see below), whose sum is σ = 47308482242. Its totient is φ = 39127315920.

The previous prime is 43040047579. The next prime is 43040047679. The reversal of 43040047633 is 33674004034.

It can be written as a sum of positive squares in only one way, i.e., 35617880529 + 7422167104 = 188727^2 + 86152^2 .

It is not a de Polignac number, because 43040047633 - 2¹⁷ = 43039916561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43040447633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 177851316 + ... + 177851557.

Almost surely, 2^43040047633 is an apocalyptic number.

It is an amenable number.

43040047633 is a deficient number, since it is larger than the sum of its proper divisors (4268434609).

43040047633 is a wasteful number, since it uses less digits than its factorization.

43040047633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355702895 (or 355702884 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 34.

The spelling of 43040047633 in words is "forty-three billion, forty million, forty-seven thousand, six hundred thirty-three".