1080205077 has 16 divisors (see below), whose sum is σ = 1665861120. Its totient is φ = 609822192.

The previous prime is 1080205073. The next prime is 1080205103. The reversal of 1080205077 is 7705020801.

It is a happy number.

It is not a de Polignac number, because 1080205077 - 2² = 1080205073 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1080205073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308127 + ... + 311612.

It is an arithmetic number, because the mean of its divisors is an integer number (104116320).

Almost surely, 2^1080205077 is an apocalyptic number.

It is an amenable number.

1080205077 is a deficient number, since it is larger than the sum of its proper divisors (585656043).

1080205077 is an equidigital number, since it uses as much as digits as its factorization.

1080205077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619832.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 1080205077 is about 32866.4734493982. The cubic root of 1080205077 is about 1026.0505040326.

Adding to 1080205077 its reverse (7705020801), we get a palindrome (8785225878).

The spelling of 1080205077 in words is "one billion, eighty million, two hundred five thousand, seventy-seven".