281736400164 has 12 divisors (see below), whose sum is σ = 657384933744. Its totient is φ = 93912133384.

The previous prime is 281736400159. The next prime is 281736400177. The reversal of 281736400164 is 461004637182.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11739016662 + ... + 11739016685.

It is an arithmetic number, because the mean of its divisors is an integer number (54782077812).

Almost surely, 2^281736400164 is an apocalyptic number.

It is an amenable number.

281736400164 is an abundant number, since it is smaller than the sum of its proper divisors (375648533580).

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

281736400164 is a wasteful number, since it uses less digits than its factorization.

281736400164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23478033354 (or 23478033352 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 281736400164 in words is "two hundred eighty-one billion, seven hundred thirty-six million, four hundred thousand, one hundred sixty-four".