46440198366781 has 2 divisors, whose sum is σ = 46440198366782. Its totient is φ = 46440198366780.

The previous prime is 46440198366719. The next prime is 46440198366799. The reversal of 46440198366781 is 18766389104464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46089842102500 + 350356264281 = 6788950^2 + 591909^2 .

It is a cyclic number.

It is not a de Polignac number, because 46440198366781 - 2¹¹ = 46440198364733 is a prime.

It is a super-2 number, since 2×46440198366781² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46440198366281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23220099183390 + 23220099183391.

It is an arithmetic number, because the mean of its divisors is an integer number (23220099183391).

Almost surely, 2^{46440198366781} is an apocalyptic number.

It is an amenable number.

46440198366781 is a deficient number, since it is larger than the sum of its proper divisors (1).

46440198366781 is an equidigital number, since it uses as much as digits as its factorization.

46440198366781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 167215104, while the sum is 67.

The spelling of 46440198366781 in words is "forty-six trillion, four hundred forty billion, one hundred ninety-eight million, three hundred sixty-six thousand, seven hundred eighty-one".