1688126462027 has 4 divisors (see below), whose sum is σ = 1729300278216. Its totient is φ = 1646952645840.

The previous prime is 1688126462023. The next prime is 1688126462039. The reversal of 1688126462027 is 7202646218861.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1688126462027 - 2² = 1688126462023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1688126462027.

It is not an unprimeable number, because it can be changed into a prime (1688126462023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20586908033 + ... + 20586908114.

It is an arithmetic number, because the mean of its divisors is an integer number (432325069554).

Almost surely, 2^{1688126462027} is an apocalyptic number.

1688126462027 is a deficient number, since it is larger than the sum of its proper divisors (41173816189).

1688126462027 is an equidigital number, since it uses as much as digits as its factorization.

1688126462027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41173816188.

The product of its (nonzero) digits is 3096576, while the sum is 53.

The spelling of 1688126462027 in words is "one trillion, six hundred eighty-eight billion, one hundred twenty-six million, four hundred sixty-two thousand, twenty-seven".