688403231516159 has 2 divisors, whose sum is σ = 688403231516160. Its totient is φ = 688403231516158.

The previous prime is 688403231516071. The next prime is 688403231516207. The reversal of 688403231516159 is 951615132304886.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 688403231516159 - 2¹² = 688403231512063 is a prime.

It is a super-2 number, since 2×688403231516159² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (688403231536159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344201615758079 + 344201615758080.

It is an arithmetic number, because the mean of its divisors is an integer number (344201615758080).

Almost surely, 2^{688403231516159} is an apocalyptic number.

688403231516159 is a deficient number, since it is larger than the sum of its proper divisors (1).

688403231516159 is an equidigital number, since it uses as much as digits as its factorization.

688403231516159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37324800, while the sum is 62.

The spelling of 688403231516159 in words is "six hundred eighty-eight trillion, four hundred three billion, two hundred thirty-one million, five hundred sixteen thousand, one hundred fifty-nine".