40349724861 has 8 divisors (see below), whose sum is σ = 54536614720. Its totient is φ = 26531325792.

The previous prime is 40349724847. The next prime is 40349724881. The reversal of 40349724861 is 16842794304.

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

It is not a de Polignac number, because 40349724861 - 2⁶ = 40349724797 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 40349724861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40349724881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92122441 + ... + 92122878.

It is an arithmetic number, because the mean of its divisors is an integer number (6817076840).

Almost surely, 2^40349724861 is an apocalyptic number.

It is an amenable number.

40349724861 is a deficient number, since it is larger than the sum of its proper divisors (14186889859).

40349724861 is a wasteful number, since it uses less digits than its factorization.

40349724861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184245395.

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 40349724861 in words is "forty billion, three hundred forty-nine million, seven hundred twenty-four thousand, eight hundred sixty-one".