46823640781 has 2 divisors, whose sum is σ = 46823640782. Its totient is φ = 46823640780.

The previous prime is 46823640767. The next prime is 46823640817. The reversal of 46823640781 is 18704632864.

Together with next prime (46823640817) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46716931881 + 106708900 = 216141^2 + 10330^2 .

It is a cyclic number.

It is not a de Polignac number, because 46823640781 - 2⁵ = 46823640749 is a prime.

It is a super-2 number, since 2×46823640781² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46823640761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23411820390 + 23411820391.

It is an arithmetic number, because the mean of its divisors is an integer number (23411820391).

Almost surely, 2^46823640781 is an apocalyptic number.

It is an amenable number.

46823640781 is a deficient number, since it is larger than the sum of its proper divisors (1).

46823640781 is an equidigital number, since it uses as much as digits as its factorization.

46823640781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1548288, while the sum is 49.

It can be divided in two parts, 4682 and 3640781, that added together give a palindrome (3645463).

The spelling of 46823640781 in words is "forty-six billion, eight hundred twenty-three million, six hundred forty thousand, seven hundred eighty-one".