1086778163 has 4 divisors (see below), whose sum is σ = 1091565960. Its totient is φ = 1081990368.

The previous prime is 1086778153. The next prime is 1086778183. The reversal of 1086778163 is 3618776801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3618776801 = 6353 ⋅569617.

It is a cyclic number.

It is not a de Polignac number, because 1086778163 - 2⁸ = 1086777907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1086778153) 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, 2393558 + ... + 2394011.

It is an arithmetic number, because the mean of its divisors is an integer number (272891490).

Almost surely, 2^1086778163 is an apocalyptic number.

1086778163 is a deficient number, since it is larger than the sum of its proper divisors (4787797).

1086778163 is an equidigital number, since it uses as much as digits as its factorization.

1086778163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4787796.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 1086778163 is about 32966.3186146103. The cubic root of 1086778163 is about 1028.1274813895.

The spelling of 1086778163 in words is "one billion, eighty-six million, seven hundred seventy-eight thousand, one hundred sixty-three".