87259202213 has 2 divisors, whose sum is σ = 87259202214. Its totient is φ = 87259202212.

The previous prime is 87259202209. The next prime is 87259202249. The reversal of 87259202213 is 31220295278.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62199362404 + 25059839809 = 249398^2 + 158303^2 .

It is a cyclic number.

It is not a de Polignac number, because 87259202213 - 2² = 87259202209 is a prime.

It is a super-2 number, since 2×87259202213² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87259232213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43629601106 + 43629601107.

It is an arithmetic number, because the mean of its divisors is an integer number (43629601107).

Almost surely, 2^87259202213 is an apocalyptic number.

It is an amenable number.

87259202213 is a deficient number, since it is larger than the sum of its proper divisors (1).

87259202213 is an equidigital number, since it uses as much as digits as its factorization.

87259202213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 87259202213 in words is "eighty-seven billion, two hundred fifty-nine million, two hundred two thousand, two hundred thirteen".