26221134201077 has 2 divisors, whose sum is σ = 26221134201078. Its totient is φ = 26221134201076.

The previous prime is 26221134201037. The next prime is 26221134201103. The reversal of 26221134201077 is 77010243112262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18495452801956 + 7725681399121 = 4300634^2 + 2779511^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26221134201077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26221134201077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26221134201007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13110567100538 + 13110567100539.

It is an arithmetic number, because the mean of its divisors is an integer number (13110567100539).

Almost surely, 2^{26221134201077} is an apocalyptic number.

It is an amenable number.

26221134201077 is a deficient number, since it is larger than the sum of its proper divisors (1).

26221134201077 is an equidigital number, since it uses as much as digits as its factorization.

26221134201077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 38.

The spelling of 26221134201077 in words is "twenty-six trillion, two hundred twenty-one billion, one hundred thirty-four million, two hundred one thousand, seventy-seven".