245653724287 has 4 divisors (see below), whose sum is σ = 251366601640. Its totient is φ = 239940846936.

The previous prime is 245653724273. The next prime is 245653724317. The reversal of 245653724287 is 782427356542.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 245653724287 - 2²³ = 245645335679 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 (245653727287) 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, 2856438612 + ... + 2856438697.

It is an arithmetic number, because the mean of its divisors is an integer number (62841650410).

Almost surely, 2^245653724287 is an apocalyptic number.

245653724287 is a deficient number, since it is larger than the sum of its proper divisors (5712877353).

245653724287 is an equidigital number, since it uses as much as digits as its factorization.

245653724287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5712877352.

The product of its digits is 22579200, while the sum is 55.

The spelling of 245653724287 in words is "two hundred forty-five billion, six hundred fifty-three million, seven hundred twenty-four thousand, two hundred eighty-seven".