812630078 has 24 divisors (see below), whose sum is σ = 1322734248. Its totient is φ = 374261472.

The previous prime is 812630053. The next prime is 812630099. The reversal of 812630078 is 870036218.

812630078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 174476 + ... + 179072.

It is an arithmetic number, because the mean of its divisors is an integer number (55113927).

Almost surely, 2^812630078 is an apocalyptic number.

812630078 is a deficient number, since it is larger than the sum of its proper divisors (510104170).

812630078 is a wasteful number, since it uses less digits than its factorization.

812630078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5148 (or 5135 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 812630078 is about 28506.6672552229. The cubic root of 812630078 is about 933.1775832226.

The spelling of 812630078 in words is "eight hundred twelve million, six hundred thirty thousand, seventy-eight".