40673963642 has 8 divisors (see below), whose sum is σ = 65704095156. Its totient is φ = 18772598592.

The previous prime is 40673963641. The next prime is 40673963663. The reversal of 40673963642 is 24636937604.

It can be written as a sum of positive squares in 2 ways, for example, as 40594593361 + 79370281 = 201481^2 + 8909^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (40673963641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 782191583 + ... + 782191634.

Almost surely, 2^40673963642 is an apocalyptic number.

40673963642 is a deficient number, since it is larger than the sum of its proper divisors (25030131514).

40673963642 is a wasteful number, since it uses less digits than its factorization.

40673963642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564383232.

The product of its (nonzero) digits is 3919104, while the sum is 50.

The spelling of 40673963642 in words is "forty billion, six hundred seventy-three million, nine hundred sixty-three thousand, six hundred forty-two".