241780718945 has 4 divisors (see below), whose sum is σ = 290136862740. Its totient is φ = 193424575152.

The previous prime is 241780718941. The next prime is 241780718947. The reversal of 241780718945 is 549817087142.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 549817087142 = 2 ⋅274908543571.

It can be written as a sum of positive squares in 2 ways, for example, as 64264278016 + 177516440929 = 253504^2 + 421327^2 .

It is a cyclic number.

It is not a de Polignac number, because 241780718945 - 2² = 241780718941 is a prime.

It is a super-2 number, since 2×241780718945² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (241780718941) 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, 24178071890 + ... + 24178071899.

It is an arithmetic number, because the mean of its divisors is an integer number (72534215685).

Almost surely, 2^241780718945 is an apocalyptic number.

It is an amenable number.

241780718945 is a deficient number, since it is larger than the sum of its proper divisors (48356143795).

241780718945 is an equidigital number, since it uses as much as digits as its factorization.

241780718945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48356143794.

The product of its (nonzero) digits is 4515840, while the sum is 56.

The spelling of 241780718945 in words is "two hundred forty-one billion, seven hundred eighty million, seven hundred eighteen thousand, nine hundred forty-five".