26546424643 has 2 divisors, whose sum is σ = 26546424644. Its totient is φ = 26546424642.

The previous prime is 26546424623. The next prime is 26546424673. The reversal of 26546424643 is 34642464562.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26546424643 is a prime.

It is a super-2 number, since 2×26546424643² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26546424593 and 26546424602.

It is not a weakly prime, because it can be changed into another prime (26546424623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13273212321 + 13273212322.

It is an arithmetic number, because the mean of its divisors is an integer number (13273212322).

Almost surely, 2^26546424643 is an apocalyptic number.

26546424643 is a deficient number, since it is larger than the sum of its proper divisors (1).

26546424643 is an equidigital number, since it uses as much as digits as its factorization.

26546424643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3317760, while the sum is 46.

The spelling of 26546424643 in words is "twenty-six billion, five hundred forty-six million, four hundred twenty-four thousand, six hundred forty-three".