242954820209958 has 32 divisors (see below), whose sum is σ = 498642746253696. Its totient is φ = 78873610928448.

The previous prime is 242954820209953. The next prime is 242954820209989. The reversal of 242954820209958 is 859902028459242.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 242954820209892 and 242954820209901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242954820209951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1356805791 + ... + 1356984842.

It is an arithmetic number, because the mean of its divisors is an integer number (15582585820428).

Almost surely, 2^{242954820209958} is an apocalyptic number.

242954820209958 is an abundant number, since it is smaller than the sum of its proper divisors (255687926043738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242954820209958 is a wasteful number, since it uses less digits than its factorization.

242954820209958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2713791028.

The product of its (nonzero) digits is 298598400, while the sum is 69.

The spelling of 242954820209958 in words is "two hundred forty-two trillion, nine hundred fifty-four billion, eight hundred twenty million, two hundred nine thousand, nine hundred fifty-eight".