281480379984 has 60 divisors (see below), whose sum is σ = 787804116372. Its totient is φ = 93820838400.

The previous prime is 281480379949. The next prime is 281480380003. The reversal of 281480379984 is 489973084182.

281480379984 is a `hidden beast` number, since 2 + 8 + 1 + 480 + 3 + 79 + 9 + 84 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 271307640384 + 10172739600 = 520872^2 + 100860^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2614254 + ... + 2719794.

Almost surely, 2^281480379984 is an apocalyptic number.

281480379984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

281480379984 is an abundant number, since it is smaller than the sum of its proper divisors (506323736388).

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

281480379984 is a wasteful number, since it uses less digits than its factorization.

281480379984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124076 (or 124067 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 63.

The spelling of 281480379984 in words is "two hundred eighty-one billion, four hundred eighty million, three hundred seventy-nine thousand, nine hundred eighty-four".