530681987897 has 32 divisors (see below), whose sum is σ = 565920432000. Its totient is φ = 496760463360.

The previous prime is 530681987863. The next prime is 530681987903. The reversal of 530681987897 is 798789186035.

It is a cyclic number.

It is not a de Polignac number, because 530681987897 - 2¹⁴ = 530681971513 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 530681987897.

It is not an unprimeable number, because it can be changed into a prime (530681987597) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143077679 + ... + 143081387.

It is an arithmetic number, because the mean of its divisors is an integer number (17685013500).

Almost surely, 2^530681987897 is an apocalyptic number.

It is an amenable number.

530681987897 is a deficient number, since it is larger than the sum of its proper divisors (35238444103).

530681987897 is a wasteful number, since it uses less digits than its factorization.

530681987897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4601.

The product of its (nonzero) digits is 182891520, while the sum is 71.

The spelling of 530681987897 in words is "five hundred thirty billion, six hundred eighty-one million, nine hundred eighty-seven thousand, eight hundred ninety-seven".