1077289431805 has 8 divisors (see below), whose sum is σ = 1292925597912. Its totient is φ = 861712692288.

The previous prime is 1077289431787. The next prime is 1077289431857. The reversal of 1077289431805 is 5081349827701.

It can be written as a sum of positive squares in 4 ways, for example, as 81281439801 + 996007992004 = 285099^2 + 998002^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1077289431805 - 2²³ = 1077281043197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14816754 + ... + 14889283.

It is an arithmetic number, because the mean of its divisors is an integer number (161615699739).

Almost surely, 2^{1077289431805} is an apocalyptic number.

It is an amenable number.

1077289431805 is a deficient number, since it is larger than the sum of its proper divisors (215636166107).

1077289431805 is an equidigital number, since it uses as much as digits as its factorization.

1077289431805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29713295.

The product of its (nonzero) digits is 3386880, while the sum is 55.

The spelling of 1077289431805 in words is "one trillion, seventy-seven billion, two hundred eighty-nine million, four hundred thirty-one thousand, eight hundred five".