26604315678 has 8 divisors (see below), whose sum is σ = 53208631368. Its totient is φ = 8868105224.

The previous prime is 26604315667. The next prime is 26604315691. The reversal of 26604315678 is 87651340662.

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

26604315678 is an admirable number.

It is a super-2 number, since 2×26604315678² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2217026301 + ... + 2217026312.

It is an arithmetic number, because the mean of its divisors is an integer number (6651078921).

Almost surely, 2^26604315678 is an apocalyptic number.

26604315678 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26604315678 is a wasteful number, since it uses less digits than its factorization.

26604315678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4434052618.

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 26604315678 in words is "twenty-six billion, six hundred four million, three hundred fifteen thousand, six hundred seventy-eight".