220428683531939 has 2 divisors, whose sum is σ = 220428683531940. Its totient is φ = 220428683531938.

The previous prime is 220428683531891. The next prime is 220428683531971. The reversal of 220428683531939 is 939135386824022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220428683531939 is a prime.

It is not a weakly prime, because it can be changed into another prime (220428683521939) 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, 110214341765969 + 110214341765970.

It is an arithmetic number, because the mean of its divisors is an integer number (110214341765970).

Almost surely, 2^{220428683531939} is an apocalyptic number.

220428683531939 is a deficient number, since it is larger than the sum of its proper divisors (1).

220428683531939 is an equidigital number, since it uses as much as digits as its factorization.

220428683531939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134369280, while the sum is 65.

The spelling of 220428683531939 in words is "two hundred twenty trillion, four hundred twenty-eight billion, six hundred eighty-three million, five hundred thirty-one thousand, nine hundred thirty-nine".