27456794864 has 10 divisors (see below), whose sum is σ = 53197540080. Its totient is φ = 13728397424.

The previous prime is 27456794861. The next prime is 27456794867. The reversal of 27456794864 is 46849765472.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (27456794861) and next prime (27456794867).

It is a super-3 number, since 3×27456794864³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27456794797 and 27456794806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27456794861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 858024824 + ... + 858024855.

It is an arithmetic number, because the mean of its divisors is an integer number (5319754008).

Almost surely, 2^27456794864 is an apocalyptic number.

It is an amenable number.

27456794864 is a deficient number, since it is larger than the sum of its proper divisors (25740745216).

27456794864 is a wasteful number, since it uses less digits than its factorization.

27456794864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716049687 (or 1716049681 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 62.

The spelling of 27456794864 in words is "twenty-seven billion, four hundred fifty-six million, seven hundred ninety-four thousand, eight hundred sixty-four".