281474976694272 has 120 divisors (see below), whose sum is σ = 750599937196032. Its totient is φ = 93822128947200.

The previous prime is 281474976694201. The next prime is 281474976694273. The reversal of 281474976694272 is 272496679474182.

It is a nialpdrome in base 2, base 4, base 8 and base 16.

It is a zygodrome in base 2 and base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281474976694273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2147434497 + ... + 2147565567.

Almost surely, 2^{281474976694272} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 281474976694272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375299968598016).

281474976694272 is an abundant number, since it is smaller than the sum of its proper divisors (469124960501760).

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

281474976694272 is an equidigital number, since it uses as much as digits as its factorization.

281474976694272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174793 (or 174767 counting only the distinct ones).

The product of its digits is 4096770048, while the sum is 78.

The spelling of 281474976694272 in words is "two hundred eighty-one trillion, four hundred seventy-four billion, nine hundred seventy-six million, six hundred ninety-four thousand, two hundred seventy-two".