87337728481 has 2 divisors, whose sum is σ = 87337728482. Its totient is φ = 87337728480.

The previous prime is 87337728419. The next prime is 87337728553. The reversal of 87337728481 is 18482773378.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67920699456 + 19417029025 = 260616^2 + 139345^2 .

It is a cyclic number.

It is not a de Polignac number, because 87337728481 - 2¹³ = 87337720289 is a prime.

It is a super-2 number, since 2×87337728481² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (87337728281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43668864240 + 43668864241.

It is an arithmetic number, because the mean of its divisors is an integer number (43668864241).

Almost surely, 2^87337728481 is an apocalyptic number.

It is an amenable number.

87337728481 is a deficient number, since it is larger than the sum of its proper divisors (1).

87337728481 is an equidigital number, since it uses as much as digits as its factorization.

87337728481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12644352, while the sum is 58.

The spelling of 87337728481 in words is "eighty-seven billion, three hundred thirty-seven million, seven hundred twenty-eight thousand, four hundred eighty-one".