1065273878 has 16 divisors (see below), whose sum is σ = 1653966000. Its totient is φ = 513973152.

The previous prime is 1065273799. The next prime is 1065273901. The reversal of 1065273878 is 8783725601.

It is a happy number.

It is a super-2 number, since 2×1065273878² = 2269616870298317768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122168 + ... + 130596.

It is an arithmetic number, because the mean of its divisors is an integer number (103372875).

Almost surely, 2^1065273878 is an apocalyptic number.

1065273878 is a deficient number, since it is larger than the sum of its proper divisors (588692122).

1065273878 is a wasteful number, since it uses less digits than its factorization.

1065273878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10639.

The product of its (nonzero) digits is 564480, while the sum is 47.

The square root of 1065273878 is about 32638.5336374047. The cubic root of 1065273878 is about 1021.3010048699.

The spelling of 1065273878 in words is "one billion, sixty-five million, two hundred seventy-three thousand, eight hundred seventy-eight".