26612610049 has 2 divisors, whose sum is σ = 26612610050. Its totient is φ = 26612610048.

The previous prime is 26612610041. The next prime is 26612610103. The reversal of 26612610049 is 94001621662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26521751025 + 90859024 = 162855^2 + 9532^2 .

It is a cyclic number.

It is not a de Polignac number, because 26612610049 - 2³ = 26612610041 is a prime.

It is not a weakly prime, because it can be changed into another prime (26612610041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13306305024 + 13306305025.

It is an arithmetic number, because the mean of its divisors is an integer number (13306305025).

Almost surely, 2^26612610049 is an apocalyptic number.

It is an amenable number.

26612610049 is a deficient number, since it is larger than the sum of its proper divisors (1).

26612610049 is an equidigital number, since it uses as much as digits as its factorization.

26612610049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 26612610049 in words is "twenty-six billion, six hundred twelve million, six hundred ten thousand, forty-nine".