242093891945 has 8 divisors (see below), whose sum is σ = 290944342536. Its totient is φ = 193387332096.

The previous prime is 242093891939. The next prime is 242093891969. The reversal of 242093891945 is 549198390242.

It can be written as a sum of positive squares in 4 ways, for example, as 61676232409 + 180417659536 = 248347^2 + 424756^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242093891945 - 2⁶ = 242093891881 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35968982 + ... + 35975711.

It is an arithmetic number, because the mean of its divisors is an integer number (36368042817).

Almost surely, 2^242093891945 is an apocalyptic number.

It is an amenable number.

242093891945 is a deficient number, since it is larger than the sum of its proper divisors (48850450591).

242093891945 is an equidigital number, since it uses as much as digits as its factorization.

242093891945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71945371.

The product of its (nonzero) digits is 5598720, while the sum is 56.

The spelling of 242093891945 in words is "two hundred forty-two billion, ninety-three million, eight hundred ninety-one thousand, nine hundred forty-five".