78820840610 has 16 divisors (see below), whose sum is σ = 148046101056. Its totient is φ = 30157538928.

The previous prime is 78820840603. The next prime is 78820840627. The reversal of 78820840610 is 1604802887.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171349424 + ... + 171349883.

It is an arithmetic number, because the mean of its divisors is an integer number (9252881316).

Almost surely, 2^78820840610 is an apocalyptic number.

78820840610 is a deficient number, since it is larger than the sum of its proper divisors (69225260446).

78820840610 is a wasteful number, since it uses less digits than its factorization.

78820840610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342699337.

The product of its (nonzero) digits is 172032, while the sum is 44.

The spelling of 78820840610 in words is "seventy-eight billion, eight hundred twenty million, eight hundred forty thousand, six hundred ten".