88442544779 has 2 divisors, whose sum is σ = 88442544780. Its totient is φ = 88442544778.

The previous prime is 88442544769. The next prime is 88442544809. The reversal of 88442544779 is 97744524488.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88442544779 is a prime.

It is not a weakly prime, because it can be changed into another prime (88442544719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44221272389 + 44221272390.

It is an arithmetic number, because the mean of its divisors is an integer number (44221272390).

Almost surely, 2^88442544779 is an apocalyptic number.

88442544779 is a deficient number, since it is larger than the sum of its proper divisors (1).

88442544779 is an equidigital number, since it uses as much as digits as its factorization.

88442544779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72253440, while the sum is 62.

The spelling of 88442544779 in words is "eighty-eight billion, four hundred forty-two million, five hundred forty-four thousand, seven hundred seventy-nine".