245421241505 has 24 divisors (see below), whose sum is σ = 322538466240. Its totient is φ = 177791037440.

The previous prime is 245421241487. The next prime is 245421241517. The reversal of 245421241505 is 505142124542.

245421241505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 245421241505 - 2⁸ = 245421241249 is a prime.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 3598916 + ... + 3666474.

It is an arithmetic number, because the mean of its divisors is an integer number (13439102760).

Almost surely, 2^245421241505 is an apocalyptic number.

It is an amenable number.

245421241505 is a deficient number, since it is larger than the sum of its proper divisors (77117224735).

245421241505 is an equidigital number, since it uses as much as digits as its factorization.

245421241505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68089 (or 67832 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

The spelling of 245421241505 in words is "two hundred forty-five billion, four hundred twenty-one million, two hundred forty-one thousand, five hundred five".