26117841478954 has 4 divisors (see below), whose sum is σ = 39176762218434. Its totient is φ = 13058920739476.

The previous prime is 26117841478921. The next prime is 26117841478999. The reversal of 26117841478954 is 45987414871162.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 24264717401929 + 1853124077025 = 4925923^2 + 1361295^2 .

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 26117841478954.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6529460369737 + ... + 6529460369740.

Almost surely, 2^{26117841478954} is an apocalyptic number.

26117841478954 is a deficient number, since it is larger than the sum of its proper divisors (13058920739480).

26117841478954 is a wasteful number, since it uses less digits than its factorization.

26117841478954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13058920739479.

The product of its digits is 108380160, while the sum is 67.

The spelling of 26117841478954 in words is "twenty-six trillion, one hundred seventeen billion, eight hundred forty-one million, four hundred seventy-eight thousand, nine hundred fifty-four".