2240042246461 has 2 divisors, whose sum is σ = 2240042246462. Its totient is φ = 2240042246460.

The previous prime is 2240042246411. The next prime is 2240042246503. The reversal of 2240042246461 is 1646422400422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1635661944900 + 604380301561 = 1278930^2 + 777419^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2240042246461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2240042246461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2240042246411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1120021123230 + 1120021123231.

It is an arithmetic number, because the mean of its divisors is an integer number (1120021123231).

Almost surely, 2^{2240042246461} is an apocalyptic number.

It is an amenable number.

2240042246461 is a deficient number, since it is larger than the sum of its proper divisors (1).

2240042246461 is an equidigital number, since it uses as much as digits as its factorization.

2240042246461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 147456, while the sum is 37.

Adding to 2240042246461 its reverse (1646422400422), we get a palindrome (3886464646883).

The spelling of 2240042246461 in words is "two trillion, two hundred forty billion, forty-two million, two hundred forty-six thousand, four hundred sixty-one".