40202054277439 has 2 divisors, whose sum is σ = 40202054277440. Its totient is φ = 40202054277438.

The previous prime is 40202054277433. The next prime is 40202054277443. The reversal of 40202054277439 is 93477245020204.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40202054277439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40202054277392 and 40202054277401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40202054277433) 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, 20101027138719 + 20101027138720.

It is an arithmetic number, because the mean of its divisors is an integer number (20101027138720).

Almost surely, 2^{40202054277439} is an apocalyptic number.

40202054277439 is a deficient number, since it is larger than the sum of its proper divisors (1).

40202054277439 is an equidigital number, since it uses as much as digits as its factorization.

40202054277439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3386880, while the sum is 49.

The spelling of 40202054277439 in words is "forty trillion, two hundred two billion, fifty-four million, two hundred seventy-seven thousand, four hundred thirty-nine".