27026416781 has 16 divisors (see below), whose sum is σ = 33270048000. Its totient is φ = 21379189248.

The previous prime is 27026416771. The next prime is 27026416841. The reversal of 27026416781 is 18761462072.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27026416781 is a prime.

It is a super-2 number, since 2×27026416781² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27026416771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 463805 + ... + 518813.

It is an arithmetic number, because the mean of its divisors is an integer number (2079378000).

Almost surely, 2^27026416781 is an apocalyptic number.

It is an amenable number.

27026416781 is a deficient number, since it is larger than the sum of its proper divisors (6243631219).

27026416781 is a wasteful number, since it uses less digits than its factorization.

27026416781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60428.

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 27026416781 in words is "twenty-seven billion, twenty-six million, four hundred sixteen thousand, seven hundred eighty-one".