40468771729 has 8 divisors (see below), whose sum is σ = 40965859872. Its totient is φ = 39971910240.

The previous prime is 40468771697. The next prime is 40468771741. The reversal of 40468771729 is 92717786404.

It is a happy number.

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

It is not a de Polignac number, because 40468771729 - 2⁵ = 40468771697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40468771729.

It is not an unprimeable number, because it can be changed into a prime (40468771769) 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, 317709 + ... + 426469.

It is an arithmetic number, because the mean of its divisors is an integer number (5120732484).

Almost surely, 2^40468771729 is an apocalyptic number.

It is an amenable number.

40468771729 is a deficient number, since it is larger than the sum of its proper divisors (497088143).

40468771729 is a wasteful number, since it uses less digits than its factorization.

40468771729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113327.

The product of its (nonzero) digits is 4741632, while the sum is 55.

The spelling of 40468771729 in words is "forty billion, four hundred sixty-eight million, seven hundred seventy-one thousand, seven hundred twenty-nine".