26402152139 has 4 divisors (see below), whose sum is σ = 28802347800. Its totient is φ = 24001956480.

The previous prime is 26402152121. The next prime is 26402152151. The reversal of 26402152139 is 93125120462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26402152139 - 2²⁰ = 26401103563 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26402152099 and 26402152108.

It is not an unprimeable number, because it can be changed into a prime (26402152339) 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 3 ways as a sum of consecutive naturals, for example, 1200097814 + ... + 1200097835.

It is an arithmetic number, because the mean of its divisors is an integer number (7200586950).

Almost surely, 2^26402152139 is an apocalyptic number.

26402152139 is a deficient number, since it is larger than the sum of its proper divisors (2400195661).

26402152139 is a wasteful number, since it uses less digits than its factorization.

26402152139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400195660.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 26402152139 in words is "twenty-six billion, four hundred two million, one hundred fifty-two thousand, one hundred thirty-nine".