1069163978 has 16 divisors (see below), whose sum is σ = 1617960960. Its totient is φ = 529852176.

The previous prime is 1069163941. The next prime is 1069163987. The reversal of 1069163978 is 8793619601.

It is a super-2 number, since 2×1069163978² = 2286223223705568968, which contains 22 as substring.

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, 461888 + ... + 464196.

It is an arithmetic number, because the mean of its divisors is an integer number (101122560).

Almost surely, 2^1069163978 is an apocalyptic number.

1069163978 is a deficient number, since it is larger than the sum of its proper divisors (548796982).

1069163978 is a wasteful number, since it uses less digits than its factorization.

1069163978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4261.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 1069163978 is about 32698.0730013253. The cubic root of 1069163978 is about 1022.5426688953.

The spelling of 1069163978 in words is "one billion, sixty-nine million, one hundred sixty-three thousand, nine hundred seventy-eight".