130520507789 has 4 divisors (see below), whose sum is σ = 149166294624. Its totient is φ = 111874720956.

The previous prime is 130520507783. The next prime is 130520507879. The reversal of 130520507789 is 987705025031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 130520507789 - 2¹⁶ = 130520442253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130520507783) 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 in 3 ways as a sum of consecutive naturals, for example, 9322893407 + ... + 9322893420.

It is an arithmetic number, because the mean of its divisors is an integer number (37291573656).

Almost surely, 2^130520507789 is an apocalyptic number.

It is an amenable number.

130520507789 is a deficient number, since it is larger than the sum of its proper divisors (18645786835).

130520507789 is an equidigital number, since it uses as much as digits as its factorization.

130520507789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18645786834.

The product of its (nonzero) digits is 529200, while the sum is 47.

The spelling of 130520507789 in words is "one hundred thirty billion, five hundred twenty million, five hundred seven thousand, seven hundred eighty-nine".