26011977548155 has 8 divisors (see below), whose sum is σ = 31218232927392. Its totient is φ = 20807008792128.

The previous prime is 26011977548147. The next prime is 26011977548213. The reversal of 26011977548155 is 55184577911062.

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 26011977548155 - 2³ = 26011977548147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26011977548093 and 26011977548102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321611322 + ... + 321692191.

It is an arithmetic number, because the mean of its divisors is an integer number (3902279115924).

Almost surely, 2^{26011977548155} is an apocalyptic number.

26011977548155 is a deficient number, since it is larger than the sum of its proper divisors (5206255379237).

26011977548155 is an equidigital number, since it uses as much as digits as its factorization.

26011977548155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643311605.

The product of its (nonzero) digits is 21168000, while the sum is 61.

The spelling of 26011977548155 in words is "twenty-six trillion, eleven billion, nine hundred seventy-seven million, five hundred forty-eight thousand, one hundred fifty-five".