281254952879 has 16 divisors (see below), whose sum is σ = 291850944000. Its totient is φ = 270719457120.

The previous prime is 281254952789. The next prime is 281254952887. The reversal of 281254952879 is 978259452182.

It is a cyclic number.

It is not a de Polignac number, because 281254952879 - 2¹² = 281254948783 is a prime.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281254952179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33837134 + ... + 33845444.

It is an arithmetic number, because the mean of its divisors is an integer number (18240684000).

Almost surely, 2^281254952879 is an apocalyptic number.

281254952879 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

281254952879 is a deficient number, since it is larger than the sum of its proper divisors (10595991121).

281254952879 is a wasteful number, since it uses less digits than its factorization.

281254952879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11798.

The product of its digits is 29030400, while the sum is 62.

The spelling of 281254952879 in words is "two hundred eighty-one billion, two hundred fifty-four million, nine hundred fifty-two thousand, eight hundred seventy-nine".