26910850491 has 12 divisors (see below), whose sum is σ = 44424261232. Its totient is φ = 15377628816.

The previous prime is 26910850459. The next prime is 26910850511. The reversal of 26910850491 is 19405801962.

26910850491 is a `hidden beast` number, since 2 + 6 + 9 + 108 + 50 + 491 = 666.

It is not a de Polignac number, because 26910850491 - 2⁵ = 26910850459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26910850091) 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, 213578116 + ... + 213578241.

Almost surely, 2^26910850491 is an apocalyptic number.

26910850491 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

26910850491 is a deficient number, since it is larger than the sum of its proper divisors (17513410741).

26910850491 is a wasteful number, since it uses less digits than its factorization.

26910850491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427156370 (or 427156367 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 26910850491 in words is "twenty-six billion, nine hundred ten million, eight hundred fifty thousand, four hundred ninety-one".