40642614539 has 2 divisors, whose sum is σ = 40642614540. Its totient is φ = 40642614538.

The previous prime is 40642614469. The next prime is 40642614583. The reversal of 40642614539 is 93541624604.

It is an a-pointer prime, because the next prime (40642614583) can be obtained adding 40642614539 to its sum of digits (44).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40642614539 - 2²⁴ = 40625837323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40642614539.

It is not a weakly prime, because it can be changed into another prime (40642614239) 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, 20321307269 + 20321307270.

It is an arithmetic number, because the mean of its divisors is an integer number (20321307270).

Almost surely, 2^40642614539 is an apocalyptic number.

40642614539 is a deficient number, since it is larger than the sum of its proper divisors (1).

40642614539 is an equidigital number, since it uses as much as digits as its factorization.

40642614539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 40642614539 in words is "forty billion, six hundred forty-two million, six hundred fourteen thousand, five hundred thirty-nine".