497204878249 has 4 divisors (see below), whose sum is σ = 498043335636. Its totient is φ = 496366420864.

The previous prime is 497204878231. The next prime is 497204878253. The reversal of 497204878249 is 942878402794.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 313191333225 + 184013545024 = 559635^2 + 428968^2 .

It is a cyclic number.

It is not a de Polignac number, because 497204878249 - 2²⁷ = 497070660521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (497204878279) 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, 419227804 + ... + 419228989.

It is an arithmetic number, because the mean of its divisors is an integer number (124510833909).

Almost surely, 2^497204878249 is an apocalyptic number.

It is an amenable number.

497204878249 is a deficient number, since it is larger than the sum of its proper divisors (838457387).

497204878249 is an equidigital number, since it uses as much as digits as its factorization.

497204878249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838457386.

The product of its (nonzero) digits is 65028096, while the sum is 64.

The spelling of 497204878249 in words is "four hundred ninety-seven billion, two hundred four million, eight hundred seventy-eight thousand, two hundred forty-nine".