40668385783 has 8 divisors (see below), whose sum is σ = 43135614720. Its totient is φ = 38233835640.

The previous prime is 40668385717. The next prime is 40668385787. The reversal of 40668385783 is 38758386604.

40668385783 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40668385783 - 2²⁵ = 40634831351 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 (40668385787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8167135 + ... + 8172112.

It is an arithmetic number, because the mean of its divisors is an integer number (5391951840).

Almost surely, 2^40668385783 is an apocalyptic number.

40668385783 is a deficient number, since it is larger than the sum of its proper divisors (2467228937).

40668385783 is a wasteful number, since it uses less digits than its factorization.

40668385783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16339397.

The product of its (nonzero) digits is 23224320, while the sum is 58.

The spelling of 40668385783 in words is "forty billion, six hundred sixty-eight million, three hundred eighty-five thousand, seven hundred eighty-three".