12667997380 has 24 divisors (see below), whose sum is σ = 27053691840. Its totient is φ = 4981313760.

The previous prime is 12667997371. The next prime is 12667997383. The reversal of 12667997380 is 8379976621.

It is not an unprimeable number, because it can be changed into a prime (12667997383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5366616 + ... + 5368975.

It is an arithmetic number, because the mean of its divisors is an integer number (1127237160).

Almost surely, 2^12667997380 is an apocalyptic number.

12667997380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12667997380 is an abundant number, since it is smaller than the sum of its proper divisors (14385694460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12667997380 is a wasteful number, since it uses less digits than its factorization.

12667997380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10735659 (or 10735657 counting only the distinct ones).

The product of its (nonzero) digits is 6858432, while the sum is 58.

The spelling of 12667997380 in words is "twelve billion, six hundred sixty-seven million, nine hundred ninety-seven thousand, three hundred eighty".