87463356625891 has 2 divisors, whose sum is σ = 87463356625892. Its totient is φ = 87463356625890.

The previous prime is 87463356625819. The next prime is 87463356625937. The reversal of 87463356625891 is 19852665336478.

Together with previous prime (87463356625819) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87463356625891 - 2³⁵ = 87428996887523 is a prime.

It is not a weakly prime, because it can be changed into another prime (87463356625591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43731678312945 + 43731678312946.

It is an arithmetic number, because the mean of its divisors is an integer number (43731678312946).

Almost surely, 2^{87463356625891} is an apocalyptic number.

87463356625891 is a deficient number, since it is larger than the sum of its proper divisors (1).

87463356625891 is an equidigital number, since it uses as much as digits as its factorization.

87463356625891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1567641600, while the sum is 73.

The spelling of 87463356625891 in words is "eighty-seven trillion, four hundred sixty-three billion, three hundred fifty-six million, six hundred twenty-five thousand, eight hundred ninety-one".