136778325227886 has 16 divisors (see below), whose sum is σ = 273560552394624. Its totient is φ = 45592124752824.

The previous prime is 136778325227881. The next prime is 136778325227891. The reversal of 136778325227886 is 688722523877631.

It is an interprime number because it is at equal distance from previous prime (136778325227881) and next prime (136778325227891).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136778325227881) 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, 162124986 + ... + 162966461.

It is an arithmetic number, because the mean of its divisors is an integer number (17097534524664).

Almost surely, 2^{136778325227886} is an apocalyptic number.

136778325227886 is an abundant number, since it is smaller than the sum of its proper divisors (136782227166738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136778325227886 is a wasteful number, since it uses less digits than its factorization.

136778325227886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325161575.

The product of its digits is 2275983360, while the sum is 75.

The spelling of 136778325227886 in words is "one hundred thirty-six trillion, seven hundred seventy-eight billion, three hundred twenty-five million, two hundred twenty-seven thousand, eight hundred eighty-six".