87198220607 has 2 divisors, whose sum is σ = 87198220608. Its totient is φ = 87198220606.

The previous prime is 87198220579. The next prime is 87198220621. The reversal of 87198220607 is 70602289178.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87198220607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87198220657) 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, 43599110303 + 43599110304.

It is an arithmetic number, because the mean of its divisors is an integer number (43599110304).

Almost surely, 2^87198220607 is an apocalyptic number.

87198220607 is a deficient number, since it is larger than the sum of its proper divisors (1).

87198220607 is an equidigital number, since it uses as much as digits as its factorization.

87198220607 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 87198220607 in words is "eighty-seven billion, one hundred ninety-eight million, two hundred twenty thousand, six hundred seven".