280551856341 has 12 divisors (see below), whose sum is σ = 397367567072. Its totient is φ = 176032536768.

The previous prime is 280551856339. The next prime is 280551856349. The reversal of 280551856341 is 143658155082.

It is not a de Polignac number, because 280551856341 - 2¹ = 280551856339 is a prime.

It is a super-2 number, since 2×280551856341² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280551856349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161793745 + ... + 161795478.

Almost surely, 2^280551856341 is an apocalyptic number.

It is an amenable number.

280551856341 is a deficient number, since it is larger than the sum of its proper divisors (116815710731).

280551856341 is a wasteful number, since it uses less digits than its factorization.

280551856341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323589260 (or 323589243 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 48.

The spelling of 280551856341 in words is "two hundred eighty billion, five hundred fifty-one million, eight hundred fifty-six thousand, three hundred forty-one".