26815730463 has 12 divisors (see below), whose sum is σ = 38738339640. Its totient is φ = 17875073616.

The previous prime is 26815730449. The next prime is 26815730471. The reversal of 26815730463 is 36403751862.

26815730463 is a `hidden beast` number, since 2 + 6 + 8 + 157 + 30 + 463 = 666.

It is not a de Polignac number, because 26815730463 - 2⁶ = 26815730399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26815737463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89556 + ... + 248297.

It is an arithmetic number, because the mean of its divisors is an integer number (3228194970).

Almost surely, 2^26815730463 is an apocalyptic number.

26815730463 is a deficient number, since it is larger than the sum of its proper divisors (11922609177).

26815730463 is a wasteful number, since it uses less digits than its factorization.

26815730463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346678 (or 346675 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 26815730463 in words is "twenty-six billion, eight hundred fifteen million, seven hundred thirty thousand, four hundred sixty-three".