26853958993894 has 4 divisors (see below), whose sum is σ = 40280938490844. Its totient is φ = 13426979496946.

The previous prime is 26853958993859. The next prime is 26853958993921. The reversal of 26853958993894 is 49839985935862.

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

It is a super-2 number, since 2×26853958993894² (a number of 28 digits) contains 22 as substring.

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, 6713489748472 + ... + 6713489748475.

It is an arithmetic number, because the mean of its divisors is an integer number (10070234622711).

Almost surely, 2^{26853958993894} is an apocalyptic number.

26853958993894 is a deficient number, since it is larger than the sum of its proper divisors (13426979496950).

26853958993894 is a wasteful number, since it uses less digits than its factorization.

26853958993894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13426979496949.

The product of its digits is 36279705600, while the sum is 88.

The spelling of 26853958993894 in words is "twenty-six trillion, eight hundred fifty-three billion, nine hundred fifty-eight million, nine hundred ninety-three thousand, eight hundred ninety-four".