26621161894 has 8 divisors (see below), whose sum is σ = 41010979248. Its totient is φ = 12950835480.

The previous prime is 26621161891. The next prime is 26621161933. The reversal of 26621161894 is 49816112662.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26621161891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179872642 + ... + 179872789.

It is an arithmetic number, because the mean of its divisors is an integer number (5126372406).

Almost surely, 2^26621161894 is an apocalyptic number.

26621161894 is a deficient number, since it is larger than the sum of its proper divisors (14389817354).

26621161894 is a wasteful number, since it uses less digits than its factorization.

26621161894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359745470.

The product of its digits is 248832, while the sum is 46.

The spelling of 26621161894 in words is "twenty-six billion, six hundred twenty-one million, one hundred sixty-one thousand, eight hundred ninety-four".