1678231212548 has 24 divisors (see below), whose sum is σ = 3314375124480. Its totient is φ = 736527804320.

The previous prime is 1678231212509. The next prime is 1678231212601. The reversal of 1678231212548 is 8452121328761.

It is a junction number, because it is equal to n+sod(n) for n = 1678231212496 and 1678231212505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 657612836 + ... + 657615387.

It is an arithmetic number, because the mean of its divisors is an integer number (138098963520).

Almost surely, 2^{1678231212548} is an apocalyptic number.

It is an amenable number.

1678231212548 is a deficient number, since it is larger than the sum of its proper divisors (1636143911932).

1678231212548 is a wasteful number, since it uses less digits than its factorization.

1678231212548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315228267 (or 1315228265 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 50.

The spelling of 1678231212548 in words is "one trillion, six hundred seventy-eight billion, two hundred thirty-one million, two hundred twelve thousand, five hundred forty-eight".