40729078974591 has 18 divisors (see below), whose sum is σ = 68435935420632. Its totient is φ = 23273759413800.

The previous prime is 40729078974553. The next prime is 40729078974593. The reversal of 40729078974591 is 19547987092704.

40729078974591 is a `hidden beast` number, since 4 + 0 + 7 + 2 + 90 + 7 + 89 + 7 + 459 + 1 = 666.

40729078974591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40729078974591 - 2³¹ = 40726931490943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40729078974593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 46178093635 + ... + 46178094516.

Almost surely, 2^{40729078974591} is an apocalyptic number.

40729078974591 is a deficient number, since it is larger than the sum of its proper divisors (27706856446041).

40729078974591 is a wasteful number, since it uses less digits than its factorization.

40729078974591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92356188171 (or 92356188161 counting only the distinct ones).

The product of its (nonzero) digits is 320060160, while the sum is 72.

The spelling of 40729078974591 in words is "forty trillion, seven hundred twenty-nine billion, seventy-eight million, nine hundred seventy-four thousand, five hundred ninety-one".