26402428477 has 2 divisors, whose sum is σ = 26402428478. Its totient is φ = 26402428476.

The previous prime is 26402428469. The next prime is 26402428601. The reversal of 26402428477 is 77482420462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22455322201 + 3947106276 = 149851^2 + 62826^2 .

It is a cyclic number.

It is not a de Polignac number, because 26402428477 - 2³ = 26402428469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26402429477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13201214238 + 13201214239.

It is an arithmetic number, because the mean of its divisors is an integer number (13201214239).

Almost surely, 2^26402428477 is an apocalyptic number.

It is an amenable number.

26402428477 is a deficient number, since it is larger than the sum of its proper divisors (1).

26402428477 is an equidigital number, since it uses as much as digits as its factorization.

26402428477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1204224, while the sum is 46.

The spelling of 26402428477 in words is "twenty-six billion, four hundred two million, four hundred twenty-eight thousand, four hundred seventy-seven".