40644112503 has 4 divisors (see below), whose sum is σ = 54192150008. Its totient is φ = 27096075000.

The previous prime is 40644112501. The next prime is 40644112507. The reversal of 40644112503 is 30521144604.

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

It is not a de Polignac number, because 40644112503 - 2¹ = 40644112501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40644112501) 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, 6774018748 + ... + 6774018753.

It is an arithmetic number, because the mean of its divisors is an integer number (13548037502).

Almost surely, 2^40644112503 is an apocalyptic number.

40644112503 is a deficient number, since it is larger than the sum of its proper divisors (13548037505).

40644112503 is a wasteful number, since it uses less digits than its factorization.

40644112503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13548037504.

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 40644112503 in words is "forty billion, six hundred forty-four million, one hundred twelve thousand, five hundred three".