1084168403777 has 2 divisors, whose sum is σ = 1084168403778. Its totient is φ = 1084168403776.

The previous prime is 1084168403767. The next prime is 1084168403819. The reversal of 1084168403777 is 7773048614801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1075553593921 + 8614809856 = 1037089^2 + 92816^2 .

It is a cyclic number.

It is not a de Polignac number, because 1084168403777 - 2²² = 1084164209473 is a prime.

It is a super-2 number, since 2×1084168403777² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1084168403767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542084201888 + 542084201889.

It is an arithmetic number, because the mean of its divisors is an integer number (542084201889).

Almost surely, 2^{1084168403777} is an apocalyptic number.

It is an amenable number.

1084168403777 is a deficient number, since it is larger than the sum of its proper divisors (1).

1084168403777 is an equidigital number, since it uses as much as digits as its factorization.

1084168403777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6322176, while the sum is 56.

It can be divided in two parts, 1084 and 168403777, that added together give a palindrome (168404861).

The spelling of 1084168403777 in words is "one trillion, eighty-four billion, one hundred sixty-eight million, four hundred three thousand, seven hundred seventy-seven".