78698067315 has 16 divisors (see below), whose sum is σ = 143905037568. Its totient is φ = 35976259296.

The previous prime is 78698067289. The next prime is 78698067319. The reversal of 78698067315 is 51376089687.

It is not a de Polignac number, because 78698067315 - 2⁶ = 78698067251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78698067319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374752597 + ... + 374752806.

It is an arithmetic number, because the mean of its divisors is an integer number (8994064848).

Almost surely, 2^78698067315 is an apocalyptic number.

78698067315 is a deficient number, since it is larger than the sum of its proper divisors (65206970253).

78698067315 is a wasteful number, since it uses less digits than its factorization.

78698067315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749505418.

The product of its (nonzero) digits is 15240960, while the sum is 60.

The spelling of 78698067315 in words is "seventy-eight billion, six hundred ninety-eight million, sixty-seven thousand, three hundred fifteen".