12958684745 has 4 divisors (see below), whose sum is σ = 15550421700. Its totient is φ = 10366947792.

The previous prime is 12958684733. The next prime is 12958684757. The reversal of 12958684745 is 54748685921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54748685921 = 509 ⋅107561269.

It is an interprime number because it is at equal distance from previous prime (12958684733) and next prime (12958684757).

It can be written as a sum of positive squares in 2 ways, for example, as 5375235856 + 7583448889 = 73316^2 + 87083^2 .

It is a cyclic number.

It is not a de Polignac number, because 12958684745 - 2²⁴ = 12941907529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1295868470 + ... + 1295868479.

It is an arithmetic number, because the mean of its divisors is an integer number (3887605425).

Almost surely, 2^12958684745 is an apocalyptic number.

It is an amenable number.

12958684745 is a deficient number, since it is larger than the sum of its proper divisors (2591736955).

12958684745 is an equidigital number, since it uses as much as digits as its factorization.

12958684745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591736954.

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

The spelling of 12958684745 in words is "twelve billion, nine hundred fifty-eight million, six hundred eighty-four thousand, seven hundred forty-five".