1069163977 has 6 divisors (see below), whose sum is σ = 1243721418. Its totient is φ = 916426224.

The previous prime is 1069163941. The next prime is 1069163987. The reversal of 1069163977 is 7793619601.

It can be written as a sum of positive squares in only one way, i.e., 875508921 + 193655056 = 29589^2 + 13916^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1069163977 is a prime.

It is a super-2 number, since 2×1069163977² = 2286223219428913058, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 21819673 = 1069163977 / (1 + 0 + 6 + 9 + 1 + 6 + 3 + 9 + 7 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1069163977.

It is not an unprimeable number, because it can be changed into a prime (1069163987) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10909788 + ... + 10909885.

It is an arithmetic number, because the mean of its divisors is an integer number (207286903).

Almost surely, 2^1069163977 is an apocalyptic number.

It is an amenable number.

1069163977 is a deficient number, since it is larger than the sum of its proper divisors (174557441).

1069163977 is an equidigital number, since it uses as much as digits as its factorization.

1069163977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21819687 (or 21819680 counting only the distinct ones).

The product of its (nonzero) digits is 428652, while the sum is 49.

The square root of 1069163977 is about 32698.0729860339. The cubic root of 1069163977 is about 1022.5426685765.

The spelling of 1069163977 in words is "one billion, sixty-nine million, one hundred sixty-three thousand, nine hundred seventy-seven".