26849494861 has 8 divisors (see below), whose sum is σ = 30687963264. Its totient is φ = 23011733040.

The previous prime is 26849494853. The next prime is 26849494873. The reversal of 26849494861 is 16849494862.

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 26849494861 - 2³ = 26849494853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26849494861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26849494811) 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, 92545 + ... + 249526.

It is an arithmetic number, because the mean of its divisors is an integer number (3835995408).

Almost surely, 2^26849494861 is an apocalyptic number.

It is an amenable number.

26849494861 is a deficient number, since it is larger than the sum of its proper divisors (3838468403).

26849494861 is a wasteful number, since it uses less digits than its factorization.

26849494861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353291.

The product of its digits is 23887872, while the sum is 61.

Subtracting from 26849494861 its reverse (16849494862), we obtain a palindrome (9999999999).

The spelling of 26849494861 in words is "twenty-six billion, eight hundred forty-nine million, four hundred ninety-four thousand, eight hundred sixty-one".