242928951586561 has 4 divisors (see below), whose sum is σ = 242930085864624. Its totient is φ = 242927817308500.

The previous prime is 242928951586537. The next prime is 242928951586577. The reversal of 242928951586561 is 165685159829242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242928951586561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242928951586501) 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, 566817715 + ... + 567246136.

It is an arithmetic number, because the mean of its divisors is an integer number (60732521466156).

Almost surely, 2^{242928951586561} is an apocalyptic number.

It is an amenable number.

242928951586561 is a deficient number, since it is larger than the sum of its proper divisors (1134278063).

242928951586561 is a wasteful number, since it uses less digits than its factorization.

242928951586561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134278062.

The product of its digits is 746496000, while the sum is 73.

The spelling of 242928951586561 in words is "two hundred forty-two trillion, nine hundred twenty-eight billion, nine hundred fifty-one million, five hundred eighty-six thousand, five hundred sixty-one".