40921703817 has 16 divisors (see below), whose sum is σ = 56100885120. Its totient is φ = 26516777600.

The previous prime is 40921703789. The next prime is 40921703839. The reversal of 40921703817 is 71830712904.

40921703817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40921703817 - 2¹⁰ = 40921702793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40921703117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 585309 + ... + 651482.

It is an arithmetic number, because the mean of its divisors is an integer number (3506305320).

Almost surely, 2^40921703817 is an apocalyptic number.

It is an amenable number.

40921703817 is a deficient number, since it is larger than the sum of its proper divisors (15179181303).

40921703817 is a wasteful number, since it uses less digits than its factorization.

40921703817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237104.

The product of its (nonzero) digits is 84672, while the sum is 42.

The spelling of 40921703817 in words is "forty billion, nine hundred twenty-one million, seven hundred three thousand, eight hundred seventeen".