87381500033 has 2 divisors, whose sum is σ = 87381500034. Its totient is φ = 87381500032.

The previous prime is 87381500021. The next prime is 87381500039. The reversal of 87381500033 is 33000518378.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81949367824 + 5432132209 = 286268^2 + 73703^2 .

It is a cyclic number.

It is not a de Polignac number, because 87381500033 - 2¹⁴ = 87381483649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87381500033.

It is not a weakly prime, because it can be changed into another prime (87381500039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43690750016 + 43690750017.

It is an arithmetic number, because the mean of its divisors is an integer number (43690750017).

Almost surely, 2^87381500033 is an apocalyptic number.

It is an amenable number.

87381500033 is a deficient number, since it is larger than the sum of its proper divisors (1).

87381500033 is an equidigital number, since it uses as much as digits as its factorization.

87381500033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 87381500033 in words is "eighty-seven billion, three hundred eighty-one million, five hundred thousand, thirty-three".