26681494154785 has 8 divisors (see below), whose sum is σ = 32017822877376. Its totient is φ = 21345175396080.

The previous prime is 26681494154759. The next prime is 26681494154971. The reversal of 26681494154785 is 58745149418662.

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

It is not a de Polignac number, because 26681494154785 - 2¹⁷ = 26681494023713 is a prime.

It is a super-2 number, since 2×26681494154785² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6083350 + ... + 9506320.

It is an arithmetic number, because the mean of its divisors is an integer number (4002227859672).

Almost surely, 2^{26681494154785} is an apocalyptic number.

It is an amenable number.

26681494154785 is a deficient number, since it is larger than the sum of its proper divisors (5336328722591).

26681494154785 is a wasteful number, since it uses less digits than its factorization.

26681494154785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4981943.

The product of its digits is 464486400, while the sum is 70.

The spelling of 26681494154785 in words is "twenty-six trillion, six hundred eighty-one billion, four hundred ninety-four million, one hundred fifty-four thousand, seven hundred eighty-five".