61078836794 has 16 divisors (see below), whose sum is σ = 94821558120. Its totient is φ = 29472629760.

The previous prime is 61078836787. The next prime is 61078836803. The reversal of 61078836794 is 49763887016.

It can be written as a sum of positive squares in 4 ways, for example, as 50124493225 + 10954343569 = 223885^2 + 104663^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118319 + ... + 368994.

Almost surely, 2^61078836794 is an apocalyptic number.

61078836794 is a deficient number, since it is larger than the sum of its proper divisors (33742721326).

61078836794 is a wasteful number, since it uses less digits than its factorization.

61078836794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489505.

The product of its (nonzero) digits is 12192768, while the sum is 59.

The spelling of 61078836794 in words is "sixty-one billion, seventy-eight million, eight hundred thirty-six thousand, seven hundred ninety-four".