20054205337787 has 2 divisors, whose sum is σ = 20054205337788. Its totient is φ = 20054205337786.

The previous prime is 20054205337783. The next prime is 20054205337811. The reversal of 20054205337787 is 78773350245002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20054205337787 - 2² = 20054205337783 is a prime.

It is not a weakly prime, because it can be changed into another prime (20054205337783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10027102668893 + 10027102668894.

It is an arithmetic number, because the mean of its divisors is an integer number (10027102668894).

Almost surely, 2^{20054205337787} is an apocalyptic number.

20054205337787 is a deficient number, since it is larger than the sum of its proper divisors (1).

20054205337787 is an equidigital number, since it uses as much as digits as its factorization.

20054205337787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9878400, while the sum is 53.

The spelling of 20054205337787 in words is "twenty trillion, fifty-four billion, two hundred five million, three hundred thirty-seven thousand, seven hundred eighty-seven".