26426390139 has 12 divisors (see below), whose sum is σ = 38462839272. Its totient is φ = 17483107200.

The previous prime is 26426390131. The next prime is 26426390191. The reversal of 26426390139 is 93109362462.

26426390139 is a `hidden beast` number, since 2 + 6 + 4 + 2 + 639 + 0 + 1 + 3 + 9 = 666.

It is not a de Polignac number, because 26426390139 - 2³ = 26426390131 is a prime.

It is a super-3 number, since 3×26426390139³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26426390094 and 26426390103.

It is not an unprimeable number, because it can be changed into a prime (26426390131) 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 11 ways as a sum of consecutive naturals, for example, 11205942 + ... + 11208299.

It is an arithmetic number, because the mean of its divisors is an integer number (3205236606).

Almost surely, 2^26426390139 is an apocalyptic number.

26426390139 is a deficient number, since it is larger than the sum of its proper divisors (12036449133).

26426390139 is a wasteful number, since it uses less digits than its factorization.

26426390139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22414378 (or 22414375 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

It can be divided in two parts, 264 and 26390139, that multiplied together give a palindrome (6966996696).

The spelling of 26426390139 in words is "twenty-six billion, four hundred twenty-six million, three hundred ninety thousand, one hundred thirty-nine".