93462581581 has 2 divisors, whose sum is σ = 93462581582. Its totient is φ = 93462581580.

The previous prime is 93462581539. The next prime is 93462581651. The reversal of 93462581581 is 18518526439.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88843340356 + 4619241225 = 298066^2 + 67965^2 .

It is a cyclic number.

It is not a de Polignac number, because 93462581581 - 2²⁷ = 93328363853 is a prime.

It is a super-2 number, since 2×93462581581² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (93462581281) 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, 46731290790 + 46731290791.

It is an arithmetic number, because the mean of its divisors is an integer number (46731290791).

Almost surely, 2^93462581581 is an apocalyptic number.

It is an amenable number.

93462581581 is a deficient number, since it is larger than the sum of its proper divisors (1).

93462581581 is an equidigital number, since it uses as much as digits as its factorization.

93462581581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2073600, while the sum is 52.

The spelling of 93462581581 in words is "ninety-three billion, four hundred sixty-two million, five hundred eighty-one thousand, five hundred eighty-one".