78934304667 has 8 divisors (see below), whose sum is σ = 105256739920. Its totient is φ = 52617369600.

The previous prime is 78934304633. The next prime is 78934304731. The reversal of 78934304667 is 76640343987.

It is a happy number.

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

It is not a de Polignac number, because 78934304667 - 2⁸ = 78934304411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78934308667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1341442 + ... + 1399047.

It is an arithmetic number, because the mean of its divisors is an integer number (13157092490).

Almost surely, 2^78934304667 is an apocalyptic number.

78934304667 is a deficient number, since it is larger than the sum of its proper divisors (26322435253).

78934304667 is a wasteful number, since it uses less digits than its factorization.

78934304667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2750093.

The product of its (nonzero) digits is 18289152, while the sum is 57.

The spelling of 78934304667 in words is "seventy-eight billion, nine hundred thirty-four million, three hundred four thousand, six hundred sixty-seven".