988687949786863 has 2 divisors, whose sum is σ = 988687949786864. Its totient is φ = 988687949786862.

The previous prime is 988687949786791. The next prime is 988687949786903. The reversal of 988687949786863 is 368687949786889.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 988687949786863 - 2⁹ = 988687949786351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (988687949786263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494343974893431 + 494343974893432.

It is an arithmetic number, because the mean of its divisors is an integer number (494343974893432).

Almost surely, 2^{988687949786863} is an apocalyptic number.

988687949786863 is a deficient number, since it is larger than the sum of its proper divisors (1).

988687949786863 is an equidigital number, since it uses as much as digits as its factorization.

988687949786863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3033950846976, while the sum is 106.

The spelling of 988687949786863 in words is "nine hundred eighty-eight trillion, six hundred eighty-seven billion, nine hundred forty-nine million, seven hundred eighty-six thousand, eight hundred sixty-three".