26809891541 has 8 divisors (see below), whose sum is σ = 27682464768. Its totient is φ = 25937802000.

The previous prime is 26809891469. The next prime is 26809891547. The reversal of 26809891541 is 14519890862.

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

It is a cyclic number.

It is not a de Polignac number, because 26809891541 - 2¹⁸ = 26809629397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26809891547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6530 + ... + 231651.

It is an arithmetic number, because the mean of its divisors is an integer number (3460308096).

Almost surely, 2^26809891541 is an apocalyptic number.

It is an amenable number.

26809891541 is a deficient number, since it is larger than the sum of its proper divisors (872573227).

26809891541 is a wasteful number, since it uses less digits than its factorization.

26809891541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241843.

The product of its (nonzero) digits is 1244160, while the sum is 53.

The spelling of 26809891541 in words is "twenty-six billion, eight hundred nine million, eight hundred ninety-one thousand, five hundred forty-one".