49462526361581 has 2 divisors, whose sum is σ = 49462526361582. Its totient is φ = 49462526361580.

The previous prime is 49462526361559. The next prime is 49462526361673. The reversal of 49462526361581 is 18516362526494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49420197002500 + 42329359081 = 7029950^2 + 205741^2 .

It is a cyclic number.

It is not a de Polignac number, because 49462526361581 - 2³⁰ = 49461452619757 is a prime.

It is a super-2 number, since 2×49462526361581² (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 (49462526360581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24731263180790 + 24731263180791.

It is an arithmetic number, because the mean of its divisors is an integer number (24731263180791).

Almost surely, 2^{49462526361581} is an apocalyptic number.

It is an amenable number.

49462526361581 is a deficient number, since it is larger than the sum of its proper divisors (1).

49462526361581 is an equidigital number, since it uses as much as digits as its factorization.

49462526361581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 74649600, while the sum is 62.

The spelling of 49462526361581 in words is "forty-nine trillion, four hundred sixty-two billion, five hundred twenty-six million, three hundred sixty-one thousand, five hundred eighty-one".