87488420249 has 2 divisors, whose sum is σ = 87488420250. Its totient is φ = 87488420248.

The previous prime is 87488420219. The next prime is 87488420267. The reversal of 87488420249 is 94202488478.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82559678224 + 4928742025 = 287332^2 + 70205^2 .

It is a cyclic number.

It is not a de Polignac number, because 87488420249 - 2²⁴ = 87471643033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87488420194 and 87488420203.

It is not a weakly prime, because it can be changed into another prime (87488420219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43744210124 + 43744210125.

It is an arithmetic number, because the mean of its divisors is an integer number (43744210125).

Almost surely, 2^87488420249 is an apocalyptic number.

It is an amenable number.

87488420249 is a deficient number, since it is larger than the sum of its proper divisors (1).

87488420249 is an equidigital number, since it uses as much as digits as its factorization.

87488420249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8257536, while the sum is 56.

The spelling of 87488420249 in words is "eighty-seven billion, four hundred eighty-eight million, four hundred twenty thousand, two hundred forty-nine".