23278078715667 has 8 divisors (see below), whose sum is σ = 31044300441024. Its totient is φ = 15515288067048.

The previous prime is 23278078715621. The next prime is 23278078715669. The reversal of 23278078715667 is 76651787087232.

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

It is not a de Polignac number, because 23278078715667 - 2⁷ = 23278078715539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23278078715669) 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, 857753353 + ... + 857780490.

It is an arithmetic number, because the mean of its divisors is an integer number (3880537555128).

Almost surely, 2^{23278078715667} is an apocalyptic number.

23278078715667 is a deficient number, since it is larger than the sum of its proper divisors (7766221725357).

23278078715667 is a wasteful number, since it uses less digits than its factorization.

23278078715667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715538369.

The product of its (nonzero) digits is 331914240, while the sum is 69.

The spelling of 23278078715667 in words is "twenty-three trillion, two hundred seventy-eight billion, seventy-eight million, seven hundred fifteen thousand, six hundred sixty-seven".