242788781445 has 16 divisors (see below), whose sum is σ = 443956629120. Its totient is φ = 110989157184.

The previous prime is 242788781429. The next prime is 242788781449. The reversal of 242788781445 is 544187887242.

242788781445 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 242788781445 - 2⁴ = 242788781429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242788781449) 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 15 ways as a sum of consecutive naturals, for example, 1156136950 + ... + 1156137159.

It is an arithmetic number, because the mean of its divisors is an integer number (27747289320).

Almost surely, 2^242788781445 is an apocalyptic number.

It is an amenable number.

242788781445 is a deficient number, since it is larger than the sum of its proper divisors (201167847675).

242788781445 is a wasteful number, since it uses less digits than its factorization.

242788781445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312274124.

The product of its digits is 32112640, while the sum is 60.

The spelling of 242788781445 in words is "two hundred forty-two billion, seven hundred eighty-eight million, seven hundred eighty-one thousand, four hundred forty-five".