26485540549 has 8 divisors (see below), whose sum is σ = 28604622200. Its totient is φ = 24378134976.

The previous prime is 26485540511. The next prime is 26485540559. The reversal of 26485540549 is 94504558462.

It can be written as a sum of positive squares in 4 ways, for example, as 8947835649 + 17537704900 = 94593^2 + 132430^2 .

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

It is not a de Polignac number, because 26485540549 - 2⁷ = 26485540421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26485540496 and 26485540505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26485540559) 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, 2914302 + ... + 2923375.

It is an arithmetic number, because the mean of its divisors is an integer number (3575577775).

Almost surely, 2^26485540549 is an apocalyptic number.

It is an amenable number.

26485540549 is a deficient number, since it is larger than the sum of its proper divisors (2119081651).

26485540549 is a wasteful number, since it uses less digits than its factorization.

26485540549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5838039.

The product of its (nonzero) digits is 6912000, while the sum is 52.

The spelling of 26485540549 in words is "twenty-six billion, four hundred eighty-five million, five hundred forty thousand, five hundred forty-nine".