12851922198426 has 32 divisors (see below), whose sum is σ = 26250998565888. Its totient is φ = 4192783537200.

The previous prime is 12851922198383. The next prime is 12851922198431. The reversal of 12851922198426 is 62489122915821.

It is a happy number.

12851922198426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12851922198426.

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, 41030361 + ... + 41342403.

It is an arithmetic number, because the mean of its divisors is an integer number (820343705184).

Almost surely, 2^{12851922198426} is an apocalyptic number.

12851922198426 is an abundant number, since it is smaller than the sum of its proper divisors (13399076367462).

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

12851922198426 is a wasteful number, since it uses less digits than its factorization.

12851922198426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458146.

The product of its digits is 9953280, while the sum is 60.

The spelling of 12851922198426 in words is "twelve trillion, eight hundred fifty-one billion, nine hundred twenty-two million, one hundred ninety-eight thousand, four hundred twenty-six".