26406241573 has 4 divisors (see below), whose sum is σ = 26648500780. Its totient is φ = 26163982368.

The previous prime is 26406241571. The next prime is 26406241583. The reversal of 26406241573 is 37514260462.

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 14260658724 + 12145582849 = 119418^2 + 110207^2 .

It is a cyclic number.

It is not a de Polignac number, because 26406241573 - 2¹ = 26406241571 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 (26406241571) 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, 121129440 + ... + 121129657.

It is an arithmetic number, because the mean of its divisors is an integer number (6662125195).

Almost surely, 2^26406241573 is an apocalyptic number.

It is an amenable number.

26406241573 is a deficient number, since it is larger than the sum of its proper divisors (242259207).

26406241573 is a wasteful number, since it uses less digits than its factorization.

26406241573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242259206.

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 26406241573 in words is "twenty-six billion, four hundred six million, two hundred forty-one thousand, five hundred seventy-three".