12787813780874 has 8 divisors (see below), whose sum is σ = 20925513459648. Its totient is φ = 5812642627660.

The previous prime is 12787813780801. The next prime is 12787813780879. The reversal of 12787813780874 is 47808731878721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12787813780798 and 12787813780807.

It is not an unprimeable number, because it can be changed into a prime (12787813780879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290632131362 + ... + 290632131405.

It is an arithmetic number, because the mean of its divisors is an integer number (2615689182456).

Almost surely, 2^{12787813780874} is an apocalyptic number.

12787813780874 is a deficient number, since it is larger than the sum of its proper divisors (8137699678774).

12787813780874 is a wasteful number, since it uses less digits than its factorization.

12787813780874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581264262780.

The product of its (nonzero) digits is 236027904, while the sum is 71.

The spelling of 12787813780874 in words is "twelve trillion, seven hundred eighty-seven billion, eight hundred thirteen million, seven hundred eighty thousand, eight hundred seventy-four".