12958883058509 has 4 divisors (see below), whose sum is σ = 13057805830080. Its totient is φ = 12859960286940.

The previous prime is 12958883058503. The next prime is 12958883058553. The reversal of 12958883058509 is 90585038885921.

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 12958883058509 - 2⁴ = 12958883058493 is a prime.

It is a super-2 number, since 2×12958883058509² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12958883058503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49461385589 + ... + 49461385850.

It is an arithmetic number, because the mean of its divisors is an integer number (3264451457520).

Almost surely, 2^{12958883058509} is an apocalyptic number.

It is an amenable number.

12958883058509 is a deficient number, since it is larger than the sum of its proper divisors (98922771571).

12958883058509 is an equidigital number, since it uses as much as digits as its factorization.

12958883058509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98922771570.

The product of its (nonzero) digits is 248832000, while the sum is 71.

The spelling of 12958883058509 in words is "twelve trillion, nine hundred fifty-eight billion, eight hundred eighty-three million, fifty-eight thousand, five hundred nine".