26172151118 has 4 divisors (see below), whose sum is σ = 39258226680. Its totient is φ = 13086075558.

The previous prime is 26172151097. The next prime is 26172151121. The reversal of 26172151118 is 81115127162.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81115127162 = 2 ⋅40557563581.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6543037778 + ... + 6543037781.

It is an arithmetic number, because the mean of its divisors is an integer number (9814556670).

Almost surely, 2^26172151118 is an apocalyptic number.

26172151118 is a deficient number, since it is larger than the sum of its proper divisors (13086075562).

26172151118 is a wasteful number, since it uses less digits than its factorization.

26172151118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13086075561.

The product of its digits is 6720, while the sum is 35.

The spelling of 26172151118 in words is "twenty-six billion, one hundred seventy-two million, one hundred fifty-one thousand, one hundred eighteen".