281479271678012 has 6 divisors (see below), whose sum is σ = 492588725436528. Its totient is φ = 140739635839004.

The previous prime is 281479271678009. The next prime is 281479271678057. The reversal of 281479271678012 is 210876172974182.

It is a self number, because there is not a number n which added to its sum of digits gives 281479271678012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35184908959748 + ... + 35184908959755.

It is an arithmetic number, because the mean of its divisors is an integer number (82098120906088).

Almost surely, 2^{281479271678012} is an apocalyptic number.

It is an amenable number.

281479271678012 is a deficient number, since it is larger than the sum of its proper divisors (211109453758516).

281479271678012 is a wasteful number, since it uses less digits than its factorization.

281479271678012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70369817919507 (or 70369817919505 counting only the distinct ones).

The product of its (nonzero) digits is 37933056, while the sum is 65.

The spelling of 281479271678012 in words is "two hundred eighty-one trillion, four hundred seventy-nine billion, two hundred seventy-one million, six hundred seventy-eight thousand, twelve".