87848018893 has 2 divisors, whose sum is σ = 87848018894. Its totient is φ = 87848018892.

The previous prime is 87848018873. The next prime is 87848018903. The reversal of 87848018893 is 39881084878.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77558351049 + 10289667844 = 278493^2 + 101438^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87848018893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87848018813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43924009446 + 43924009447.

It is an arithmetic number, because the mean of its divisors is an integer number (43924009447).

Almost surely, 2^87848018893 is an apocalyptic number.

It is an amenable number.

87848018893 is a deficient number, since it is larger than the sum of its proper divisors (1).

87848018893 is an equidigital number, since it uses as much as digits as its factorization.

87848018893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24772608, while the sum is 64.

The spelling of 87848018893 in words is "eighty-seven billion, eight hundred forty-eight million, eighteen thousand, eight hundred ninety-three".