12987354274356 has 192 divisors, whose sum is σ = 40344984207360. Its totient is φ = 3151951488000.

The previous prime is 12987354274337. The next prime is 12987354274361. The reversal of 12987354274356 is 65347245378921.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6986665 + ... + 8648016.

It is an arithmetic number, because the mean of its divisors is an integer number (210130126080).

Almost surely, 2^{12987354274356} is an apocalyptic number.

It is an amenable number.

12987354274356 is an abundant number, since it is smaller than the sum of its proper divisors (27357629933004).

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

12987354274356 is a wasteful number, since it uses less digits than its factorization.

12987354274356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15634766 (or 15634764 counting only the distinct ones).

The product of its digits is 304819200, while the sum is 66.

The spelling of 12987354274356 in words is "twelve trillion, nine hundred eighty-seven billion, three hundred fifty-four million, two hundred seventy-four thousand, three hundred fifty-six".