40138689583 has 2 divisors, whose sum is σ = 40138689584. Its totient is φ = 40138689582.

The previous prime is 40138689559. The next prime is 40138689593. The reversal of 40138689583 is 38598683104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40138689583 - 2¹³ = 40138681391 is a prime.

It is a super-2 number, since 2×40138689583² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40138689553) 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, 20069344791 + 20069344792.

It is an arithmetic number, because the mean of its divisors is an integer number (20069344792).

Almost surely, 2^40138689583 is an apocalyptic number.

40138689583 is a deficient number, since it is larger than the sum of its proper divisors (1).

40138689583 is an equidigital number, since it uses as much as digits as its factorization.

40138689583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 40138689583 in words is "forty billion, one hundred thirty-eight million, six hundred eighty-nine thousand, five hundred eighty-three".