1678199160879 has 10 divisors (see below), whose sum is σ = 2506939487360. Its totient is φ = 1118799440532.

The previous prime is 1678199160851. The next prime is 1678199160899. The reversal of 1678199160879 is 9780619918761.

1678199160879 is a `hidden beast` number, since 1 + 6 + 7 + 8 + 1 + 9 + 9 + 1 + 608 + 7 + 9 = 666.

It is not a de Polignac number, because 1678199160879 - 2⁹ = 1678199160367 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 (1678199160899) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10359253999 + ... + 10359254160.

It is an arithmetic number, because the mean of its divisors is an integer number (250693948736).

Almost surely, 2^{1678199160879} is an apocalyptic number.

1678199160879 is a deficient number, since it is larger than the sum of its proper divisors (828740326481).

1678199160879 is an equidigital number, since it uses as much as digits as its factorization.

1678199160879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20718508171 (or 20718508162 counting only the distinct ones).

The product of its (nonzero) digits is 82301184, while the sum is 72.

The spelling of 1678199160879 in words is "one trillion, six hundred seventy-eight billion, one hundred ninety-nine million, one hundred sixty thousand, eight hundred seventy-nine".