240044357731961 has 2 divisors, whose sum is σ = 240044357731962. Its totient is φ = 240044357731960.

The previous prime is 240044357731931. The next prime is 240044357732027. The reversal of 240044357731961 is 169137753440042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198935679055936 + 41108678676025 = 14104456^2 + 6411605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240044357731961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 240044357731897 and 240044357731906.

It is not a weakly prime, because it can be changed into another prime (240044357731931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120022178865980 + 120022178865981.

It is an arithmetic number, because the mean of its divisors is an integer number (120022178865981).

Almost surely, 2^{240044357731961} is an apocalyptic number.

It is an amenable number.

240044357731961 is a deficient number, since it is larger than the sum of its proper divisors (1).

240044357731961 is an equidigital number, since it uses as much as digits as its factorization.

240044357731961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15240960, while the sum is 56.

The spelling of 240044357731961 in words is "two hundred forty trillion, forty-four billion, three hundred fifty-seven million, seven hundred thirty-one thousand, nine hundred sixty-one".