40036033987 has 4 divisors (see below), whose sum is σ = 40050936576. Its totient is φ = 40021131400.

The previous prime is 40036033981. The next prime is 40036033997. The reversal of 40036033987 is 78933063004.

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

It is a cyclic number.

It is not a de Polignac number, because 40036033987 - 2¹¹ = 40036031939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40036033981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7447264 + ... + 7452637.

It is an arithmetic number, because the mean of its divisors is an integer number (10012734144).

Almost surely, 2^40036033987 is an apocalyptic number.

40036033987 is a deficient number, since it is larger than the sum of its proper divisors (14902589).

40036033987 is a wasteful number, since it uses less digits than its factorization.

40036033987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14902588.

The product of its (nonzero) digits is 326592, while the sum is 43.

The spelling of 40036033987 in words is "forty billion, thirty-six million, thirty-three thousand, nine hundred eighty-seven".