27805805755 has 48 divisors (see below), whose sum is σ = 41353139520. Its totient is φ = 17574395904.

The previous prime is 27805805743. The next prime is 27805805767. The reversal of 27805805755 is 55750850872.

It is an interprime number because it is at equal distance from previous prime (27805805743) and next prime (27805805767).

It is not a de Polignac number, because 27805805755 - 2⁹ = 27805805243 is a prime.

It is a super-2 number, since 2×27805805755² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4545579 + ... + 4551691.

It is an arithmetic number, because the mean of its divisors is an integer number (861523740).

Almost surely, 2^27805805755 is an apocalyptic number.

27805805755 is a deficient number, since it is larger than the sum of its proper divisors (13547333765).

27805805755 is a wasteful number, since it uses less digits than its factorization.

27805805755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6920 (or 6907 counting only the distinct ones).

The product of its (nonzero) digits is 3920000, while the sum is 52.

The spelling of 27805805755 in words is "twenty-seven billion, eight hundred five million, eight hundred five thousand, seven hundred fifty-five".