1346666679 has 12 divisors (see below), whose sum is σ = 2059608096. Its totient is φ = 844967232.

The previous prime is 1346666677. The next prime is 1346666687. The reversal of 1346666679 is 9766666431.

It is not a de Polignac number, because 1346666679 - 2¹ = 1346666677 is a prime.

It is a super-2 number, since 2×1346666679² = 3627022288657778082, which contains 22 as substring.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1346666677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4400719 + ... + 4401024.

It is an arithmetic number, because the mean of its divisors is an integer number (171634008).

Almost surely, 2^1346666679 is an apocalyptic number.

1346666679 is a deficient number, since it is larger than the sum of its proper divisors (712941417).

1346666679 is a wasteful number, since it uses less digits than its factorization.

1346666679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8801766 (or 8801763 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 54.

The square root of 1346666679 is about 36696.9573534374. The cubic root of 1346666679 is about 1104.2990658548.

The spelling of 1346666679 in words is "one billion, three hundred forty-six million, six hundred sixty-six thousand, six hundred seventy-nine".