26026430645 has 8 divisors (see below), whose sum is σ = 31582635480. Its totient is φ = 20587198720.

The previous prime is 26026430611. The next prime is 26026430699. The reversal of 26026430645 is 54603462062.

It can be written as a sum of positive squares in 4 ways, for example, as 1965604 + 26024465041 = 1402^2 + 161321^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26026430645 - 2¹⁰ = 26026429621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26026430599 and 26026430608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29242736 + ... + 29243625.

It is an arithmetic number, because the mean of its divisors is an integer number (3947829435).

Almost surely, 2^26026430645 is an apocalyptic number.

It is an amenable number.

26026430645 is a deficient number, since it is larger than the sum of its proper divisors (5556204835).

26026430645 is an equidigital number, since it uses as much as digits as its factorization.

26026430645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58486455.

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 26026430645 in words is "twenty-six billion, twenty-six million, four hundred thirty thousand, six hundred forty-five".