27750617151 has 4 divisors (see below), whose sum is σ = 37000822872. Its totient is φ = 18500411432.

The previous prime is 27750617119. The next prime is 27750617159. The reversal of 27750617151 is 15171605772.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27750617151 - 2⁵ = 27750617119 is a prime.

It is a super-2 number, since 2×27750617151² (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 (27750617159) 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 3 ways as a sum of consecutive naturals, for example, 4625102856 + ... + 4625102861.

It is an arithmetic number, because the mean of its divisors is an integer number (9250205718).

Almost surely, 2^27750617151 is an apocalyptic number.

27750617151 is a deficient number, since it is larger than the sum of its proper divisors (9250205721).

27750617151 is an equidigital number, since it uses as much as digits as its factorization.

27750617151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9250205720.

The product of its (nonzero) digits is 102900, while the sum is 42.

The spelling of 27750617151 in words is "twenty-seven billion, seven hundred fifty million, six hundred seventeen thousand, one hundred fifty-one".