1070806778 has 16 divisors (see below), whose sum is σ = 1723994280. Its totient is φ = 497005056.

The previous prime is 1070806771. The next prime is 1070806783. The reversal of 1070806778 is 8776080701.

It can be written as a sum of positive squares in 4 ways, for example, as 1052548249 + 18258529 = 32443^2 + 4273^2 .

It is a super-2 number, since 2×1070806778² = 2293254311621482568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1070806771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213233 + ... + 218196.

Almost surely, 2^1070806778 is an apocalyptic number.

1070806778 is a deficient number, since it is larger than the sum of its proper divisors (653187502).

1070806778 is a wasteful number, since it uses less digits than its factorization.

1070806778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431521.

The product of its (nonzero) digits is 131712, while the sum is 44.

The square root of 1070806778 is about 32723.1841054626. The cubic root of 1070806778 is about 1023.0661225765.

The spelling of 1070806778 in words is "one billion, seventy million, eight hundred six thousand, seven hundred seventy-eight".