78890830766 has 8 divisors (see below), whose sum is σ = 129094086744. Its totient is φ = 35859468520.

The previous prime is 78890830729. The next prime is 78890830793. The reversal of 78890830766 is 66703809887.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 78890830699 and 78890830708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1792973405 + ... + 1792973448.

It is an arithmetic number, because the mean of its divisors is an integer number (16136760843).

Almost surely, 2^78890830766 is an apocalyptic number.

78890830766 is a deficient number, since it is larger than the sum of its proper divisors (50203255978).

78890830766 is a wasteful number, since it uses less digits than its factorization.

78890830766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3585946866.

The product of its (nonzero) digits is 24385536, while the sum is 62.

The spelling of 78890830766 in words is "seventy-eight billion, eight hundred ninety million, eight hundred thirty thousand, seven hundred sixty-six".