1678311423 has 12 divisors (see below), whose sum is σ = 2438746128. Its totient is φ = 1112173440.

The previous prime is 1678311353. The next prime is 1678311443. The reversal of 1678311423 is 3241138761.

It is a happy number.

It is not a de Polignac number, because 1678311423 - 2⁹ = 1678310911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1678311443) 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, 556818 + ... + 559823.

It is an arithmetic number, because the mean of its divisors is an integer number (203228844).

Almost surely, 2^1678311423 is an apocalyptic number.

1678311423 is a deficient number, since it is larger than the sum of its proper divisors (760434705).

1678311423 is a wasteful number, since it uses less digits than its factorization.

1678311423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116814 (or 1116811 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 1678311423 is about 40967.1993550938. The cubic root of 1678311423 is about 1188.3859725190.

The spelling of 1678311423 in words is "one billion, six hundred seventy-eight million, three hundred eleven thousand, four hundred twenty-three".