13680979007 has 4 divisors (see below), whose sum is σ = 14485742496. Its totient is φ = 12876215520.

The previous prime is 13680979001. The next prime is 13680979009. The reversal of 13680979007 is 70097908631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70097908631 = 971 ⋅72191461.

It is a cyclic number.

It is not a de Polignac number, because 13680979007 - 2¹² = 13680974911 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 (13680979001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402381719 + ... + 402381752.

It is an arithmetic number, because the mean of its divisors is an integer number (3621435624).

Almost surely, 2^13680979007 is an apocalyptic number.

13680979007 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13680979007 is a deficient number, since it is larger than the sum of its proper divisors (804763489).

13680979007 is an equidigital number, since it uses as much as digits as its factorization.

13680979007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804763488.

The product of its (nonzero) digits is 571536, while the sum is 50.

The spelling of 13680979007 in words is "thirteen billion, six hundred eighty million, nine hundred seventy-nine thousand, seven".