78672427687 has 8 divisors (see below), whose sum is σ = 90377209376. Its totient is φ = 67084111872.

The previous prime is 78672427679. The next prime is 78672427709.

78672427687 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 78672427687 - 2³ = 78672427679 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 (78672427187) 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, 29115018 + ... + 29117719.

It is an arithmetic number, because the mean of its divisors is an integer number (11297151172).

Almost surely, 2^78672427687 is an apocalyptic number.

78672427687 is a deficient number, since it is larger than the sum of its proper divisors (11704781689).

78672427687 is a wasteful number, since it uses less digits than its factorization.

78672427687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58232937.

The product of its digits is 88510464, while the sum is 64.

The spelling of 78672427687 in words is "seventy-eight billion, six hundred seventy-two million, four hundred twenty-seven thousand, six hundred eighty-seven".