87184372901 has 2 divisors, whose sum is σ = 87184372902. Its totient is φ = 87184372900.

The previous prime is 87184372897. The next prime is 87184372943. The reversal of 87184372901 is 10927348178.

It is a happy number.

It is a Cunningham number, because it is equal to 295270²+1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87184372900 + 1 = 295270^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 87184372901 - 2² = 87184372897 is a prime.

It is a super-2 number, since 2×87184372901² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87184372901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87184372001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43592186450 + 43592186451.

It is an arithmetic number, because the mean of its divisors is an integer number (43592186451).

Almost surely, 2^87184372901 is an apocalyptic number.

It is an amenable number.

87184372901 is a deficient number, since it is larger than the sum of its proper divisors (1).

87184372901 is an equidigital number, since it uses as much as digits as its factorization.

87184372901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 677376, while the sum is 50.

The spelling of 87184372901 in words is "eighty-seven billion, one hundred eighty-four million, three hundred seventy-two thousand, nine hundred one".