87478119853 has 2 divisors, whose sum is σ = 87478119854. Its totient is φ = 87478119852.

The previous prime is 87478119821. The next prime is 87478119901. The reversal of 87478119853 is 35891187478.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57798410569 + 29679709284 = 240413^2 + 172278^2 .

It is a cyclic number.

It is not a de Polignac number, because 87478119853 - 2⁵ = 87478119821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87478119791 and 87478119800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87478119653) 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, 43739059926 + 43739059927.

It is an arithmetic number, because the mean of its divisors is an integer number (43739059927).

Almost surely, 2^87478119853 is an apocalyptic number.

It is an amenable number.

87478119853 is a deficient number, since it is larger than the sum of its proper divisors (1).

87478119853 is an equidigital number, since it uses as much as digits as its factorization.

87478119853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13547520, while the sum is 61.

The spelling of 87478119853 in words is "eighty-seven billion, four hundred seventy-eight million, one hundred nineteen thousand, eight hundred fifty-three".