26061649349 has 8 divisors (see below), whose sum is σ = 28115343000. Its totient is φ = 24065806336.

The previous prime is 26061649331. The next prime is 26061649351. The reversal of 26061649349 is 94394616062.

It can be written as a sum of positive squares in 4 ways, for example, as 3054220225 + 23007429124 = 55265^2 + 151682^2 .

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 26061649349 - 2¹⁶ = 26061583813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26061649297 and 26061649306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26061649399) 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, 14461724 + ... + 14463525.

It is an arithmetic number, because the mean of its divisors is an integer number (3514417875).

Almost surely, 2^26061649349 is an apocalyptic number.

It is an amenable number.

26061649349 is a deficient number, since it is larger than the sum of its proper divisors (2053693651).

26061649349 is a wasteful number, since it uses less digits than its factorization.

26061649349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28925319.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The spelling of 26061649349 in words is "twenty-six billion, sixty-one million, six hundred forty-nine thousand, three hundred forty-nine".