26311994439 has 16 divisors (see below), whose sum is σ = 35140340352. Its totient is φ = 17512517088.

The previous prime is 26311994417. The next prime is 26311994461. The reversal of 26311994439 is 93449911362.

It is an interprime number because it is at equal distance from previous prime (26311994417) and next prime (26311994461).

It is not a de Polignac number, because 26311994439 - 2⁸ = 26311994183 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26311994391 and 26311994400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26311994039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6827037 + ... + 6830889.

It is an arithmetic number, because the mean of its divisors is an integer number (2196271272).

Almost surely, 2^26311994439 is an apocalyptic number.

26311994439 is a deficient number, since it is larger than the sum of its proper divisors (8828345913).

26311994439 is a wasteful number, since it uses less digits than its factorization.

26311994439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7006.

The product of its digits is 1259712, while the sum is 51.

The spelling of 26311994439 in words is "twenty-six billion, three hundred eleven million, nine hundred ninety-four thousand, four hundred thirty-nine".