40243600651 has 4 divisors (see below), whose sum is σ = 40445830000. Its totient is φ = 40041371304.

The previous prime is 40243600609. The next prime is 40243600679. The reversal of 40243600651 is 15600634204.

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 40243600651 - 2⁹ = 40243600139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40243604651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101114376 + ... + 101114773.

It is an arithmetic number, because the mean of its divisors is an integer number (10111457500).

Almost surely, 2^40243600651 is an apocalyptic number.

40243600651 is a deficient number, since it is larger than the sum of its proper divisors (202229349).

40243600651 is a wasteful number, since it uses less digits than its factorization.

40243600651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202229348.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 40243600651 in words is "forty billion, two hundred forty-three million, six hundred thousand, six hundred fifty-one".