87491276227 has 2 divisors, whose sum is σ = 87491276228. Its totient is φ = 87491276226.

The previous prime is 87491276189. The next prime is 87491276251. The reversal of 87491276227 is 72267219478.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87491276227 is a prime.

It is not a weakly prime, because it can be changed into another prime (87491270227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43745638113 + 43745638114.

It is an arithmetic number, because the mean of its divisors is an integer number (43745638114).

Almost surely, 2^87491276227 is an apocalyptic number.

87491276227 is a deficient number, since it is larger than the sum of its proper divisors (1).

87491276227 is an equidigital number, since it uses as much as digits as its factorization.

87491276227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4741632, while the sum is 55.

The spelling of 87491276227 in words is "eighty-seven billion, four hundred ninety-one million, two hundred seventy-six thousand, two hundred twenty-seven".