26020668139 has 8 divisors (see below), whose sum is σ = 26600685120. Its totient is φ = 25441750656.

The previous prime is 26020668109. The next prime is 26020668161. The reversal of 26020668139 is 93186602062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26020668139 - 2³³ = 17430733547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26020668095 and 26020668104.

It is not an unprimeable number, because it can be changed into a prime (26020668109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226924 + ... + 321769.

It is an arithmetic number, because the mean of its divisors is an integer number (3325085640).

Almost surely, 2^26020668139 is an apocalyptic number.

26020668139 is a deficient number, since it is larger than the sum of its proper divisors (580016981).

26020668139 is a wasteful number, since it uses less digits than its factorization.

26020668139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549749.

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 26020668139 in words is "twenty-six billion, twenty million, six hundred sixty-eight thousand, one hundred thirty-nine".