26178104026 has 4 divisors (see below), whose sum is σ = 39267156042. Its totient is φ = 13089052012.

The previous prime is 26178104021. The next prime is 26178104053. The reversal of 26178104026 is 62040187162.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62040187162 = 2 ⋅31020093581.

It can be written as a sum of positive squares in only one way, i.e., 21887723025 + 4290381001 = 147945^2 + 65501^2 .

It is not an unprimeable number, because it can be changed into a prime (26178104021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6544526005 + ... + 6544526008.

Almost surely, 2^26178104026 is an apocalyptic number.

26178104026 is a deficient number, since it is larger than the sum of its proper divisors (13089052016).

26178104026 is a wasteful number, since it uses less digits than its factorization.

26178104026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13089052015.

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 26178104026 in words is "twenty-six billion, one hundred seventy-eight million, one hundred four thousand, twenty-six".