40349724847 has 2 divisors, whose sum is σ = 40349724848. Its totient is φ = 40349724846.

The previous prime is 40349724827. The next prime is 40349724881. The reversal of 40349724847 is 74842794304.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40349724847 - 2²³ = 40341336239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40349724794 and 40349724803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40349724827) 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 as a sum of consecutive naturals, namely, 20174862423 + 20174862424.

It is an arithmetic number, because the mean of its divisors is an integer number (20174862424).

Almost surely, 2^40349724847 is an apocalyptic number.

40349724847 is a deficient number, since it is larger than the sum of its proper divisors (1).

40349724847 is an equidigital number, since it uses as much as digits as its factorization.

40349724847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5419008, while the sum is 52.

The spelling of 40349724847 in words is "forty billion, three hundred forty-nine million, seven hundred twenty-four thousand, eight hundred forty-seven".