280427475707 has 4 divisors (see below), whose sum is σ = 281425438536. Its totient is φ = 279429512880.

The previous prime is 280427475703. The next prime is 280427475721. The reversal of 280427475707 is 707574724082.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 707574724082 = 2 ⋅353787362041.

It is a cyclic number.

It is not a de Polignac number, because 280427475707 - 2² = 280427475703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (280427475703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498980993 + ... + 498981554.

It is an arithmetic number, because the mean of its divisors is an integer number (70356359634).

Almost surely, 2^280427475707 is an apocalyptic number.

280427475707 is a deficient number, since it is larger than the sum of its proper divisors (997962829).

280427475707 is an equidigital number, since it uses as much as digits as its factorization.

280427475707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997962828.

The product of its (nonzero) digits is 6146560, while the sum is 53.

The spelling of 280427475707 in words is "two hundred eighty billion, four hundred twenty-seven million, four hundred seventy-five thousand, seven hundred seven".