12516977214 has 36 divisors (see below), whose sum is σ = 30997529784. Its totient is φ = 3575920392.

The previous prime is 12516977203. The next prime is 12516977219. The reversal of 12516977214 is 41277961521.

It is a self number, because there is not a number n which added to its sum of digits gives 12516977214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12516977219) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1250859 + ... + 1260825.

It is an arithmetic number, because the mean of its divisors is an integer number (861042494).

Almost surely, 2^12516977214 is an apocalyptic number.

12516977214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12516977214 is an abundant number, since it is smaller than the sum of its proper divisors (18480552570).

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

12516977214 is an frugal number, since it uses more digits than its factorization.

12516977214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19949 (or 9979 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The spelling of 12516977214 in words is "twelve billion, five hundred sixteen million, nine hundred seventy-seven thousand, two hundred fourteen".