78718854790 has 16 divisors (see below), whose sum is σ = 150028876512. Its totient is φ = 29635333504.

The previous prime is 78718854749. The next prime is 78718854803. The reversal of 78718854790 is 9745881787.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231525874 + ... + 231526213.

It is an arithmetic number, because the mean of its divisors is an integer number (9376804782).

Almost surely, 2^78718854790 is an apocalyptic number.

78718854790 is a deficient number, since it is larger than the sum of its proper divisors (71310021722).

78718854790 is a wasteful number, since it uses less digits than its factorization.

78718854790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463052111.

The product of its (nonzero) digits is 31610880, while the sum is 64.

The spelling of 78718854790 in words is "seventy-eight billion, seven hundred eighteen million, eight hundred fifty-four thousand, seven hundred ninety".