988586677697 has 2 divisors, whose sum is σ = 988586677698. Its totient is φ = 988586677696.

The previous prime is 988586677643. The next prime is 988586677723. The reversal of 988586677697 is 796776685889.

988586677697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 873746345536 + 114840332161 = 934744^2 + 338881^2 .

It is a cyclic number.

It is not a de Polignac number, because 988586677697 - 2²⁰ = 988585629121 is a prime.

It is not a weakly prime, because it can be changed into another prime (988586377697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494293338848 + 494293338849.

It is an arithmetic number, because the mean of its divisors is an integer number (494293338849).

Almost surely, 2^988586677697 is an apocalyptic number.

It is an amenable number.

988586677697 is a deficient number, since it is larger than the sum of its proper divisors (1).

988586677697 is an equidigital number, since it uses as much as digits as its factorization.

988586677697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15362887680, while the sum is 86.

The spelling of 988586677697 in words is "nine hundred eighty-eight billion, five hundred eighty-six million, six hundred seventy-seven thousand, six hundred ninety-seven".