40673443786 has 4 divisors (see below), whose sum is σ = 61010165682. Its totient is φ = 20336721892.

The previous prime is 40673443771. The next prime is 40673443819. The reversal of 40673443786 is 68734437604.

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

It can be written as a sum of positive squares in only one way, i.e., 40660706025 + 12737761 = 201645^2 + 3569^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10168360945 + ... + 10168360948.

Almost surely, 2^40673443786 is an apocalyptic number.

40673443786 is a deficient number, since it is larger than the sum of its proper divisors (20336721896).

40673443786 is a wasteful number, since it uses less digits than its factorization.

40673443786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20336721895.

The product of its (nonzero) digits is 8128512, while the sum is 52.

The spelling of 40673443786 in words is "forty billion, six hundred seventy-three million, four hundred forty-three thousand, seven hundred eighty-six".