27804869568 has 112 divisors (see below), whose sum is σ = 93418517760. Its totient is φ = 7944244992.

The previous prime is 27804869567. The next prime is 27804869569. The reversal of 27804869568 is 86596840872.

27804869568 is a `hidden beast` number, since 2 + 7 + 8 + 0 + 4 + 8 + 69 + 568 = 666.

It is an interprime number because it is at equal distance from previous prime (27804869567) and next prime (27804869569).

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×27804869568² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27804869567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1137246 + ... + 1161437.

Almost surely, 2^27804869568 is an apocalyptic number.

27804869568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27804869568 is an abundant number, since it is smaller than the sum of its proper divisors (65613648192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27804869568 is a wasteful number, since it uses less digits than its factorization.

27804869568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298711 (or 2298695 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 63.

The spelling of 27804869568 in words is "twenty-seven billion, eight hundred four million, eight hundred sixty-nine thousand, five hundred sixty-eight".