26424571643 has 4 divisors (see below), whose sum is σ = 26428252488. Its totient is φ = 26420890800.

The previous prime is 26424571631. The next prime is 26424571703. The reversal of 26424571643 is 34617542462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34617542462 = 2 ⋅17308771231.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26424571643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26424571594 and 26424571603.

It is not an unprimeable number, because it can be changed into a prime (26424574643) 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, 1829633 + ... + 1844018.

It is an arithmetic number, because the mean of its divisors is an integer number (6607063122).

Almost surely, 2^26424571643 is an apocalyptic number.

26424571643 is a deficient number, since it is larger than the sum of its proper divisors (3680845).

26424571643 is an equidigital number, since it uses as much as digits as its factorization.

26424571643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3680844.

The product of its digits is 967680, while the sum is 44.

The spelling of 26424571643 in words is "twenty-six billion, four hundred twenty-four million, five hundred seventy-one thousand, six hundred forty-three".