40814721683 has 4 divisors (see below), whose sum is σ = 40817156640. Its totient is φ = 40812286728.

The previous prime is 40814721671. The next prime is 40814721709. The reversal of 40814721683 is 38612741804.

40814721683 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40814721683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40814721653) 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, 1192160 + ... + 1225917.

It is an arithmetic number, because the mean of its divisors is an integer number (10204289160).

Almost surely, 2^40814721683 is an apocalyptic number.

40814721683 is a deficient number, since it is larger than the sum of its proper divisors (2434957).

40814721683 is a wasteful number, since it uses less digits than its factorization.

40814721683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2434956.

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 40814721683 in words is "forty billion, eight hundred fourteen million, seven hundred twenty-one thousand, six hundred eighty-three".