26193059481 has 4 divisors (see below), whose sum is σ = 34924079312. Its totient is φ = 17462039652.

The previous prime is 26193059461. The next prime is 26193059483. The reversal of 26193059481 is 18495039162.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 26193059481 - 2¹³ = 26193051289 is a prime.

It is a super-2 number, since 2×26193059481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26193059481.

It is not an unprimeable number, because it can be changed into a prime (26193059483) 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, 4365509911 + ... + 4365509916.

It is an arithmetic number, because the mean of its divisors is an integer number (8731019828).

Almost surely, 2^26193059481 is an apocalyptic number.

It is an amenable number.

26193059481 is a deficient number, since it is larger than the sum of its proper divisors (8731019831).

26193059481 is an equidigital number, since it uses as much as digits as its factorization.

26193059481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8731019830.

The product of its (nonzero) digits is 466560, while the sum is 48.

The spelling of 26193059481 in words is "twenty-six billion, one hundred ninety-three million, fifty-nine thousand, four hundred eighty-one".