245772217285 has 8 divisors (see below), whose sum is σ = 337059040896. Its totient is φ = 168529520400.

The previous prime is 245772217277. The next prime is 245772217289. The reversal of 245772217285 is 582712277542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 245772217285 - 2³ = 245772217277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245772217289) 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, 3511031641 + ... + 3511031710.

It is an arithmetic number, because the mean of its divisors is an integer number (42132380112).

Almost surely, 2^245772217285 is an apocalyptic number.

It is an amenable number.

245772217285 is a deficient number, since it is larger than the sum of its proper divisors (91286823611).

245772217285 is an equidigital number, since it uses as much as digits as its factorization.

245772217285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7022063363.

The product of its digits is 4390400, while the sum is 52.

The spelling of 245772217285 in words is "two hundred forty-five billion, seven hundred seventy-two million, two hundred seventeen thousand, two hundred eighty-five".