40426109439 has 8 divisors (see below), whose sum is σ = 53915151360. Its totient is φ = 26943903576.

The previous prime is 40426109363. The next prime is 40426109443. The reversal of 40426109439 is 93490162404.

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

It is not a de Polignac number, because 40426109439 - 2¹¹ = 40426107391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40426109439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40426109489) 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 7 ways as a sum of consecutive naturals, for example, 1695199 + ... + 1718880.

It is an arithmetic number, because the mean of its divisors is an integer number (6739393920).

Almost surely, 2^40426109439 is an apocalyptic number.

40426109439 is a deficient number, since it is larger than the sum of its proper divisors (13489041921).

40426109439 is a wasteful number, since it uses less digits than its factorization.

40426109439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3418029.

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 40426109439 in words is "forty billion, four hundred twenty-six million, one hundred nine thousand, four hundred thirty-nine".