87125216954441 has 2 divisors, whose sum is σ = 87125216954442. Its totient is φ = 87125216954440.

The previous prime is 87125216954381. The next prime is 87125216954443. The reversal of 87125216954441 is 14445961252178.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84203031840841 + 2922185113600 = 9176221^2 + 1709440^2 .

It is a cyclic number.

It is not a de Polignac number, because 87125216954441 - 2²⁶ = 87125149845577 is a prime.

Together with 87125216954443, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87125216954443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43562608477220 + 43562608477221.

It is an arithmetic number, because the mean of its divisors is an integer number (43562608477221).

Almost surely, 2^{87125216954441} is an apocalyptic number.

It is an amenable number.

87125216954441 is a deficient number, since it is larger than the sum of its proper divisors (1).

87125216954441 is an equidigital number, since it uses as much as digits as its factorization.

87125216954441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19353600, while the sum is 59.

The spelling of 87125216954441 in words is "eighty-seven trillion, one hundred twenty-five billion, two hundred sixteen million, nine hundred fifty-four thousand, four hundred forty-one".