78930584711378 has 4 divisors (see below), whose sum is σ = 118395877067070. Its totient is φ = 39465292355688.

The previous prime is 78930584711359. The next prime is 78930584711401. The reversal of 78930584711378 is 87311748503987.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 72510964223569 + 6419620487809 = 8515337^2 + 2533697^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19732646177843 + ... + 19732646177846.

Almost surely, 2^{78930584711378} is an apocalyptic number.

78930584711378 is a deficient number, since it is larger than the sum of its proper divisors (39465292355692).

78930584711378 is a wasteful number, since it uses less digits than its factorization.

78930584711378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39465292355691.

The product of its (nonzero) digits is 284497920, while the sum is 71.

The spelling of 78930584711378 in words is "seventy-eight trillion, nine hundred thirty billion, five hundred eighty-four million, seven hundred eleven thousand, three hundred seventy-eight".