26158194836 has 6 divisors (see below), whose sum is σ = 45776840970. Its totient is φ = 13079097416.

The previous prime is 26158194833. The next prime is 26158194841. The reversal of 26158194836 is 63849185162.

It can be written as a sum of positive squares in only one way, i.e., 25785936400 + 372258436 = 160580^2 + 19294^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26158194833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3269774351 + ... + 3269774358.

It is an arithmetic number, because the mean of its divisors is an integer number (7629473495).

Almost surely, 2^26158194836 is an apocalyptic number.

It is an amenable number.

26158194836 is a deficient number, since it is larger than the sum of its proper divisors (19618646134).

26158194836 is a wasteful number, since it uses less digits than its factorization.

26158194836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6539548713 (or 6539548711 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 53.

The spelling of 26158194836 in words is "twenty-six billion, one hundred fifty-eight million, one hundred ninety-four thousand, eight hundred thirty-six".