1681926127 has 12 divisors (see below), whose sum is σ = 2071617120. Its totient is φ = 1356847296.

The previous prime is 1681926119. The next prime is 1681926133. The reversal of 1681926127 is 7216291861.

It is not a de Polignac number, because 1681926127 - 2³ = 1681926119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1681926107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1008727 + ... + 1010392.

It is an arithmetic number, because the mean of its divisors is an integer number (172634760).

Almost surely, 2^1681926127 is an apocalyptic number.

1681926127 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1681926127 is a deficient number, since it is larger than the sum of its proper divisors (389690993).

1681926127 is a wasteful number, since it uses less digits than its factorization.

1681926127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019150 (or 2019143 counting only the distinct ones).

The product of its digits is 72576, while the sum is 43.

The square root of 1681926127 is about 41011.2926765300. The cubic root of 1681926127 is about 1189.2385324573.

The spelling of 1681926127 in words is "one billion, six hundred eighty-one million, nine hundred twenty-six thousand, one hundred twenty-seven".