46540476648581 has 2 divisors, whose sum is σ = 46540476648582. Its totient is φ = 46540476648580.

The previous prime is 46540476648551. The next prime is 46540476648671. The reversal of 46540476648581 is 18584667404564.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23559287071681 + 22981189576900 = 4853791^2 + 4793870^2 .

It is a cyclic number.

It is not a de Polignac number, because 46540476648581 - 2⁶ = 46540476648517 is a prime.

It is a super-2 number, since 2×46540476648581² (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 (46540476648521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23270238324290 + 23270238324291.

It is an arithmetic number, because the mean of its divisors is an integer number (23270238324291).

Almost surely, 2^{46540476648581} is an apocalyptic number.

It is an amenable number.

46540476648581 is a deficient number, since it is larger than the sum of its proper divisors (1).

46540476648581 is an equidigital number, since it uses as much as digits as its factorization.

46540476648581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 619315200, while the sum is 68.

The spelling of 46540476648581 in words is "forty-six trillion, five hundred forty billion, four hundred seventy-six million, six hundred forty-eight thousand, five hundred eighty-one".