26078391415 has 8 divisors (see below), whose sum is σ = 32654681568. Its totient is φ = 19955638560.

The previous prime is 26078391379. The next prime is 26078391473. The reversal of 26078391415 is 51419387062.

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

It is not a de Polignac number, because 26078391415 - 2⁹ = 26078390903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113384196 + ... + 113384425.

It is an arithmetic number, because the mean of its divisors is an integer number (4081835196).

It is a 1-persistent number, because it is pandigital, but 2⋅26078391415 = 52156782830 is not.

Almost surely, 2^26078391415 is an apocalyptic number.

26078391415 is a deficient number, since it is larger than the sum of its proper divisors (6576290153).

26078391415 is a wasteful number, since it uses less digits than its factorization.

26078391415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226768649.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 26078391415 in words is "twenty-six billion, seventy-eight million, three hundred ninety-one thousand, four hundred fifteen".