26155311158 has 4 divisors (see below), whose sum is σ = 39232966740. Its totient is φ = 13077655578.

The previous prime is 26155311157. The next prime is 26155311199. The reversal of 26155311158 is 85111355162.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26155311157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6538827788 + ... + 6538827791.

It is an arithmetic number, because the mean of its divisors is an integer number (9808241685).

Almost surely, 2^26155311158 is an apocalyptic number.

26155311158 is a deficient number, since it is larger than the sum of its proper divisors (13077655582).

26155311158 is a wasteful number, since it uses less digits than its factorization.

26155311158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13077655581.

The product of its digits is 36000, while the sum is 38.

The spelling of 26155311158 in words is "twenty-six billion, one hundred fifty-five million, three hundred eleven thousand, one hundred fifty-eight".