40001368139 has 2 divisors, whose sum is σ = 40001368140. Its totient is φ = 40001368138.

The previous prime is 40001368129. The next prime is 40001368163. The reversal of 40001368139 is 93186310004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40001368139 - 2¹⁶ = 40001302603 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40001368099 and 40001368108.

It is not a weakly prime, because it can be changed into another prime (40001368129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20000684069 + 20000684070.

It is an arithmetic number, because the mean of its divisors is an integer number (20000684070).

Almost surely, 2^40001368139 is an apocalyptic number.

40001368139 is a deficient number, since it is larger than the sum of its proper divisors (1).

40001368139 is an equidigital number, since it uses as much as digits as its factorization.

40001368139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The spelling of 40001368139 in words is "forty billion, one million, three hundred sixty-eight thousand, one hundred thirty-nine".