245365870427 has 4 divisors (see below), whose sum is σ = 245589541416. Its totient is φ = 245142199440.

The previous prime is 245365870391. The next prime is 245365870433. The reversal of 245365870427 is 724078563542.

245365870427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724078563542 = 2 ⋅362039281771.

It is a cyclic number.

It is not a de Polignac number, because 245365870427 - 2¹⁰ = 245365869403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245365873427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111833849 + ... + 111836042.

It is an arithmetic number, because the mean of its divisors is an integer number (61397385354).

Almost surely, 2^245365870427 is an apocalyptic number.

245365870427 is a deficient number, since it is larger than the sum of its proper divisors (223670989).

245365870427 is a wasteful number, since it uses less digits than its factorization.

245365870427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223670988.

The product of its (nonzero) digits is 11289600, while the sum is 53.

The spelling of 245365870427 in words is "two hundred forty-five billion, three hundred sixty-five million, eight hundred seventy thousand, four hundred twenty-seven".