87427975053437 has 2 divisors, whose sum is σ = 87427975053438. Its totient is φ = 87427975053436.

The previous prime is 87427975053431. The next prime is 87427975053509. The reversal of 87427975053437 is 73435057972478.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86452915576036 + 975059477401 = 9298006^2 + 987451^2 .

It is a cyclic number.

It is not a de Polignac number, because 87427975053437 - 2⁴ = 87427975053421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87427975053431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43713987526718 + 43713987526719.

It is an arithmetic number, because the mean of its divisors is an integer number (43713987526719).

Almost surely, 2^{87427975053437} is an apocalyptic number.

It is an amenable number.

87427975053437 is a deficient number, since it is larger than the sum of its proper divisors (1).

87427975053437 is an equidigital number, since it uses as much as digits as its factorization.

87427975053437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244678400, while the sum is 71.

The spelling of 87427975053437 in words is "eighty-seven trillion, four hundred twenty-seven billion, nine hundred seventy-five million, fifty-three thousand, four hundred thirty-seven".