988888887777793 has 2 divisors, whose sum is σ = 988888887777794. Its totient is φ = 988888887777792.

The previous prime is 988888887777761. The next prime is 988888887777797. The reversal of 988888887777793 is 397777788888889.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 679289977228864 + 309598910548929 = 26063192^2 + 17595423^2 .

It is a cyclic number.

It is not a de Polignac number, because 988888887777793 - 2⁵ = 988888887777761 is a prime.

It is not a weakly prime, because it can be changed into another prime (988888887777797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494444443888896 + 494444443888897.

It is an arithmetic number, because the mean of its divisors is an integer number (494444443888897).

Almost surely, 2^{988888887777793} is an apocalyptic number.

It is an amenable number.

988888887777793 is a deficient number, since it is larger than the sum of its proper divisors (1).

988888887777793 is an equidigital number, since it uses as much as digits as its factorization.

988888887777793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8564980580352, while the sum is 112.

The spelling of 988888887777793 in words is "nine hundred eighty-eight trillion, eight hundred eighty-eight billion, eight hundred eighty-seven million, seven hundred seventy-seven thousand, seven hundred ninety-three".