27750617152 has 28 divisors (see below), whose sum is σ = 55078083900. Its totient is φ = 13872674816.

The previous prime is 27750617119. The next prime is 27750617159. The reversal of 27750617152 is 25171605772.

It can be written as a sum of positive squares in 2 ways, for example, as 15113260096 + 12637357056 = 122936^2 + 112416^2 .

It is a super-2 number, since 2×27750617152² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27750617099 and 27750617108.

It is not an unprimeable number, because it can be changed into a prime (27750617159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323724 + ... + 400372.

It is an arithmetic number, because the mean of its divisors is an integer number (1967074425).

Almost surely, 2^27750617152 is an apocalyptic number.

It is an amenable number.

27750617152 is a deficient number, since it is larger than the sum of its proper divisors (27327466748).

27750617152 is an equidigital number, since it uses as much as digits as its factorization.

27750617152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82318 (or 82308 counting only the distinct ones).

The product of its (nonzero) digits is 205800, while the sum is 43.

The spelling of 27750617152 in words is "twenty-seven billion, seven hundred fifty million, six hundred seventeen thousand, one hundred fifty-two".