26438922815 has 16 divisors (see below), whose sum is σ = 32009040000. Its totient is φ = 20963534592.

The previous prime is 26438922803. The next prime is 26438922823. The reversal of 26438922815 is 51822983462.

It is a cyclic number.

It is not a de Polignac number, because 26438922815 - 2⁶ = 26438922751 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306611 + ... + 383259.

It is an arithmetic number, because the mean of its divisors is an integer number (2000565000).

Almost surely, 2^26438922815 is an apocalyptic number.

26438922815 is a deficient number, since it is larger than the sum of its proper divisors (5570117185).

26438922815 is a wasteful number, since it uses less digits than its factorization.

26438922815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77266.

The product of its digits is 1658880, while the sum is 50.

The spelling of 26438922815 in words is "twenty-six billion, four hundred thirty-eight million, nine hundred twenty-two thousand, eight hundred fifteen".