87194300651 has 2 divisors, whose sum is σ = 87194300652. Its totient is φ = 87194300650.

The previous prime is 87194300621. The next prime is 87194300659. The reversal of 87194300651 is 15600349178.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87194300651 - 2¹⁴ = 87194284267 is a prime.

It is not a weakly prime, because it can be changed into another prime (87194300659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43597150325 + 43597150326.

It is an arithmetic number, because the mean of its divisors is an integer number (43597150326).

Almost surely, 2^87194300651 is an apocalyptic number.

87194300651 is a deficient number, since it is larger than the sum of its proper divisors (1).

87194300651 is an equidigital number, since it uses as much as digits as its factorization.

87194300651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 87194300651 in words is "eighty-seven billion, one hundred ninety-four million, three hundred thousand, six hundred fifty-one".