78834039076 has 27 divisors (see below), whose sum is σ = 149402006481. Its totient is φ = 36381571824.

The previous prime is 78834039071. The next prime is 78834039077. The reversal of 78834039076 is 67093043887.

The square root of 78834039076 is 280774.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 11661840100 + 67172198976 = 107990^2 + 259176^2 .

It is not an unprimeable number, because it can be changed into a prime (78834039071) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7294725 + ... + 7305523.

Almost surely, 2^78834039076 is an apocalyptic number.

78834039076 is the 280774-th square number.

It is an amenable number.

78834039076 is a deficient number, since it is larger than the sum of its proper divisors (70567967405).

78834039076 is an equidigital number, since it uses as much as digits as its factorization.

78834039076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21628 (or 10814 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 55.

The spelling of 78834039076 in words is "seventy-eight billion, eight hundred thirty-four million, thirty-nine thousand, seventy-six".