12876820854 has 32 divisors (see below), whose sum is σ = 26129765376. Its totient is φ = 4229648640.

The previous prime is 12876820843. The next prime is 12876820883. The reversal of 12876820854 is 45802867821.

It is a junction number, because it is equal to n+sod(n) for n = 12876820797 and 12876820806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 967654 + ... + 980870.

It is an arithmetic number, because the mean of its divisors is an integer number (816555168).

Almost surely, 2^12876820854 is an apocalyptic number.

12876820854 is an abundant number, since it is smaller than the sum of its proper divisors (13252944522).

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

12876820854 is a wasteful number, since it uses less digits than its factorization.

12876820854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15580.

The product of its (nonzero) digits is 1720320, while the sum is 51.

The spelling of 12876820854 in words is "twelve billion, eight hundred seventy-six million, eight hundred twenty thousand, eight hundred fifty-four".