40253721163 has 4 divisors (see below), whose sum is σ = 40365848880. Its totient is φ = 40141593448.

The previous prime is 40253721143. The next prime is 40253721187. The reversal of 40253721163 is 36112735204.

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 40253721163 - 2²⁵ = 40220166731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40253721103) 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, 56063320 + ... + 56064037.

It is an arithmetic number, because the mean of its divisors is an integer number (10091462220).

Almost surely, 2^40253721163 is an apocalyptic number.

40253721163 is a deficient number, since it is larger than the sum of its proper divisors (112127717).

40253721163 is a wasteful number, since it uses less digits than its factorization.

40253721163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112127716.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 40253721163 in words is "forty billion, two hundred fifty-three million, seven hundred twenty-one thousand, one hundred sixty-three".