87870457579 has 2 divisors, whose sum is σ = 87870457580. Its totient is φ = 87870457578.

The previous prime is 87870457511. The next prime is 87870457603. The reversal of 87870457579 is 97575407878.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87870457579 - 2¹⁷ = 87870326507 is a prime.

It is not a weakly prime, because it can be changed into another prime (87870457979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43935228789 + 43935228790.

It is an arithmetic number, because the mean of its divisors is an integer number (43935228790).

Almost surely, 2^87870457579 is an apocalyptic number.

87870457579 is a deficient number, since it is larger than the sum of its proper divisors (1).

87870457579 is an equidigital number, since it uses as much as digits as its factorization.

87870457579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138297600, while the sum is 67.

The spelling of 87870457579 in words is "eighty-seven billion, eight hundred seventy million, four hundred fifty-seven thousand, five hundred seventy-nine".