1779060449081 has 2 divisors, whose sum is σ = 1779060449082. Its totient is φ = 1779060449080.

The previous prime is 1779060449053. The next prime is 1779060449119. The reversal of 1779060449081 is 1809440609771.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1685582890000 + 93477559081 = 1298300^2 + 305741^2 .

It is a cyclic number.

It is not a de Polignac number, because 1779060449081 - 2¹⁰ = 1779060448057 is a prime.

It is a super-2 number, since 2×1779060449081² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1779060449051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 889530224540 + 889530224541.

It is an arithmetic number, because the mean of its divisors is an integer number (889530224541).

Almost surely, 2^{1779060449081} is an apocalyptic number.

It is an amenable number.

1779060449081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1779060449081 is an equidigital number, since it uses as much as digits as its factorization.

1779060449081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 56.

The spelling of 1779060449081 in words is "one trillion, seven hundred seventy-nine billion, sixty million, four hundred forty-nine thousand, eighty-one".