26146205551 has 2 divisors, whose sum is σ = 26146205552. Its totient is φ = 26146205550.

The previous prime is 26146205507. The next prime is 26146205557. The reversal of 26146205551 is 15550264162.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26146205551 is a prime.

It is a super-3 number, since 3×26146205551³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26146205551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26146205557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13073102775 + 13073102776.

It is an arithmetic number, because the mean of its divisors is an integer number (13073102776).

Almost surely, 2^26146205551 is an apocalyptic number.

26146205551 is a deficient number, since it is larger than the sum of its proper divisors (1).

26146205551 is an equidigital number, since it uses as much as digits as its factorization.

26146205551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 26146205551 in words is "twenty-six billion, one hundred forty-six million, two hundred five thousand, five hundred fifty-one".