26423012619 has 8 divisors (see below), whose sum is σ = 39145203920. Its totient is φ = 17615341728.

The previous prime is 26423012617. The next prime is 26423012639. The reversal of 26423012619 is 91621032462.

It is a happy number.

26423012619 is a `hidden beast` number, since 2 + 6 + 4 + 2 + 30 + 1 + 2 + 619 = 666.

It is not a de Polignac number, because 26423012619 - 2¹ = 26423012617 is a prime.

It is a super-2 number, since 2×26423012619² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26423012617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489315022 + ... + 489315075.

It is an arithmetic number, because the mean of its divisors is an integer number (4893150490).

Almost surely, 2^26423012619 is an apocalyptic number.

26423012619 is a deficient number, since it is larger than the sum of its proper divisors (12722191301).

26423012619 is an equidigital number, since it uses as much as digits as its factorization.

26423012619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978630106 (or 978630100 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 26423012619 in words is "twenty-six billion, four hundred twenty-three million, twelve thousand, six hundred nineteen".