1077800081 has 4 divisors (see below), whose sum is σ = 1091443200. Its totient is φ = 1064156964.

The previous prime is 1077800071. The next prime is 1077800083. The reversal of 1077800081 is 1800087701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1077800081 - 2²⁶ = 1010691217 is a prime.

It is a super-2 number, since 2×1077800081² = 2323306029207213122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1077800083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6821441 + ... + 6821598.

It is an arithmetic number, because the mean of its divisors is an integer number (272860800).

Almost surely, 2^1077800081 is an apocalyptic number.

It is an amenable number.

1077800081 is a deficient number, since it is larger than the sum of its proper divisors (13643119).

1077800081 is an equidigital number, since it uses as much as digits as its factorization.

1077800081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13643118.

The product of its (nonzero) digits is 3136, while the sum is 32.

The square root of 1077800081 is about 32829.8656865970. The cubic root of 1077800081 is about 1025.2884632487.

Adding to 1077800081 its reverse (1800087701), we get a palindrome (2877887782).

The spelling of 1077800081 in words is "one billion, seventy-seven million, eight hundred thousand, eighty-one".