78075687679 has 8 divisors (see below), whose sum is σ = 85300043472. Its totient is φ = 70872426240.

The previous prime is 78075687659. The next prime is 78075687713. The reversal of 78075687679 is 97678657087.

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

It is not a de Polignac number, because 78075687679 - 2⁵ = 78075687647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78075687659) 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, 5265844 + ... + 5280649.

It is an arithmetic number, because the mean of its divisors is an integer number (10662505434).

Almost surely, 2^78075687679 is an apocalyptic number.

78075687679 is a deficient number, since it is larger than the sum of its proper divisors (7224355793).

78075687679 is a wasteful number, since it uses less digits than its factorization.

78075687679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10547177.

The product of its (nonzero) digits is 248935680, while the sum is 70.

The spelling of 78075687679 in words is "seventy-eight billion, seventy-five million, six hundred eighty-seven thousand, six hundred seventy-nine".