988687949786903 has 2 divisors, whose sum is σ = 988687949786904. Its totient is φ = 988687949786902.

The previous prime is 988687949786863. The next prime is 988687949786909. The reversal of 988687949786903 is 309687949786889.

988687949786903 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 is an emirp because it is prime and its reverse (309687949786889) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 988687949786903 - 2¹² = 988687949782807 is a prime.

It is a super-2 number, since 2×988687949786903² (a number of 31 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 988687949786794 and 988687949786803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (988687949786909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494343974893451 + 494343974893452.

It is an arithmetic number, because the mean of its divisors is an integer number (494343974893452).

Almost surely, 2^{988687949786903} is an apocalyptic number.

988687949786903 is a deficient number, since it is larger than the sum of its proper divisors (1).

988687949786903 is an equidigital number, since it uses as much as digits as its factorization.

988687949786903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 568865783808, while the sum is 101.

The spelling of 988687949786903 in words is "nine hundred eighty-eight trillion, six hundred eighty-seven billion, nine hundred forty-nine million, seven hundred eighty-six thousand, nine hundred three".