242680873257407 has 4 divisors (see below), whose sum is σ = 261348632738760. Its totient is φ = 224013113776056.

The previous prime is 242680873257401. The next prime is 242680873257419. The reversal of 242680873257407 is 704752378086242.

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 242680873257407 - 2¹⁶ = 242680873191871 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 (242680873257401) 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, 9333879740657 + ... + 9333879740682.

It is an arithmetic number, because the mean of its divisors is an integer number (65337158184690).

Almost surely, 2^{242680873257407} is an apocalyptic number.

242680873257407 is a deficient number, since it is larger than the sum of its proper divisors (18667759481353).

242680873257407 is a wasteful number, since it uses less digits than its factorization.

242680873257407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18667759481352.

The product of its (nonzero) digits is 252887040, while the sum is 65.

The spelling of 242680873257407 in words is "two hundred forty-two trillion, six hundred eighty billion, eight hundred seventy-three million, two hundred fifty-seven thousand, four hundred seven".