87398482991 has 2 divisors, whose sum is σ = 87398482992. Its totient is φ = 87398482990.

The previous prime is 87398482967. The next prime is 87398482999. The reversal of 87398482991 is 19928489378.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87398482991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87398482999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43699241495 + 43699241496.

It is an arithmetic number, because the mean of its divisors is an integer number (43699241496).

Almost surely, 2^87398482991 is an apocalyptic number.

87398482991 is a deficient number, since it is larger than the sum of its proper divisors (1).

87398482991 is an equidigital number, since it uses as much as digits as its factorization.

87398482991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62705664, while the sum is 68.

The spelling of 87398482991 in words is "eighty-seven billion, three hundred ninety-eight million, four hundred eighty-two thousand, nine hundred ninety-one".