78950945686 has 8 divisors (see below), whose sum is σ = 118429634160. Its totient is φ = 39474400968.

The previous prime is 78950945657. The next prime is 78950945693. The reversal of 78950945686 is 68654905987.

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

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, 440466 + ... + 593221.

It is an arithmetic number, because the mean of its divisors is an integer number (14803704270).

Almost surely, 2^78950945686 is an apocalyptic number.

78950945686 is a deficient number, since it is larger than the sum of its proper divisors (39478688474).

78950945686 is a wasteful number, since it uses less digits than its factorization.

78950945686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071878.

The product of its (nonzero) digits is 130636800, while the sum is 67.

The spelling of 78950945686 in words is "seventy-eight billion, nine hundred fifty million, nine hundred forty-five thousand, six hundred eighty-six".