27976627955 has 4 divisors (see below), whose sum is σ = 33571953552. Its totient is φ = 22381302360.

The previous prime is 27976627951. The next prime is 27976627963. The reversal of 27976627955 is 55972667972.

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

It is not a de Polignac number, because 27976627955 - 2² = 27976627951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27976627891 and 27976627900.

It is not an unprimeable number, because it can be changed into a prime (27976627951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2797662791 + ... + 2797662800.

It is an arithmetic number, because the mean of its divisors is an integer number (8392988388).

Almost surely, 2^27976627955 is an apocalyptic number.

27976627955 is a deficient number, since it is larger than the sum of its proper divisors (5595325597).

27976627955 is an equidigital number, since it uses as much as digits as its factorization.

27976627955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5595325596.

The product of its digits is 100018800, while the sum is 65.

The spelling of 27976627955 in words is "twenty-seven billion, nine hundred seventy-six million, six hundred twenty-seven thousand, nine hundred fifty-five".