40203520045439 has 2 divisors, whose sum is σ = 40203520045440. Its totient is φ = 40203520045438.

The previous prime is 40203520045309. The next prime is 40203520045483. The reversal of 40203520045439 is 93454002530204.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40203520045439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40203520045396 and 40203520045405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40203520045939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20101760022719 + 20101760022720.

It is an arithmetic number, because the mean of its divisors is an integer number (20101760022720).

Almost surely, 2^{40203520045439} is an apocalyptic number.

40203520045439 is a deficient number, since it is larger than the sum of its proper divisors (1).

40203520045439 is an equidigital number, since it uses as much as digits as its factorization.

40203520045439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 40203520045439 in words is "forty trillion, two hundred three billion, five hundred twenty million, forty-five thousand, four hundred thirty-nine".