26343434477 has 4 divisors (see below), whose sum is σ = 26344119516. Its totient is φ = 26342749440.

The previous prime is 26343434461. The next prime is 26343434483. The reversal of 26343434477 is 77443434362.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19640901316 + 6702533161 = 140146^2 + 81869^2 .

It is a cyclic number.

It is not a de Polignac number, because 26343434477 - 2⁴ = 26343434461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26343434407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281174 + ... + 362967.

It is an arithmetic number, because the mean of its divisors is an integer number (6586029879).

Almost surely, 2^26343434477 is an apocalyptic number.

It is an amenable number.

26343434477 is a deficient number, since it is larger than the sum of its proper divisors (685039).

26343434477 is an equidigital number, since it uses as much as digits as its factorization.

26343434477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685038.

The product of its digits is 4064256, while the sum is 47.

The spelling of 26343434477 in words is "twenty-six billion, three hundred forty-three million, four hundred thirty-four thousand, four hundred seventy-seven".