531070063987 has 4 divisors (see below), whose sum is σ = 531071648640. Its totient is φ = 531068479336.

The previous prime is 531070063973. The next prime is 531070064023. The reversal of 531070063987 is 789360070135.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 531070063987 - 2¹⁹ = 531069539699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 531070063987.

It is not an unprimeable number, because it can be changed into a prime (531070063957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70312 + ... + 1032997.

It is an arithmetic number, because the mean of its divisors is an integer number (132767912160).

Almost surely, 2^531070063987 is an apocalyptic number.

531070063987 is a deficient number, since it is larger than the sum of its proper divisors (1584653).

531070063987 is a wasteful number, since it uses less digits than its factorization.

531070063987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1584652.

The product of its (nonzero) digits is 952560, while the sum is 49.

The spelling of 531070063987 in words is "five hundred thirty-one billion, seventy million, sixty-three thousand, nine hundred eighty-seven".