1681114427 has 6 divisors (see below), whose sum is σ = 1741083708. Its totient is φ = 1623144152.

The previous prime is 1681114423. The next prime is 1681114429. The reversal of 1681114427 is 7244111861.

It is not a de Polignac number, because 1681114427 - 2² = 1681114423 is a prime.

It is a super-2 number, since 2×1681114427² = 5652291433335076658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1681114423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 998633 + ... + 1000314.

It is an arithmetic number, because the mean of its divisors is an integer number (290180618).

Almost surely, 2^1681114427 is an apocalyptic number.

1681114427 is a deficient number, since it is larger than the sum of its proper divisors (59969281).

1681114427 is an equidigital number, since it uses as much as digits as its factorization.

1681114427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999005 (or 1998976 counting only the distinct ones).

The product of its digits is 10752, while the sum is 35.

The square root of 1681114427 is about 41001.3954274730. The cubic root of 1681114427 is about 1189.0471922574.

The spelling of 1681114427 in words is "one billion, six hundred eighty-one million, one hundred fourteen thousand, four hundred twenty-seven".