12958631047 has 4 divisors (see below), whose sum is σ = 13640664280. Its totient is φ = 12276597816.

The previous prime is 12958631039. The next prime is 12958631087. The reversal of 12958631047 is 74013685921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74013685921 = 7 ⋅10573383703.

It is a cyclic number.

It is not a de Polignac number, because 12958631047 - 2³ = 12958631039 is a prime.

It is a super-2 number, since 2×12958631047² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12958630988 and 12958631006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12958631087) 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, 341016588 + ... + 341016625.

It is an arithmetic number, because the mean of its divisors is an integer number (3410166070).

It is a 1-persistent number, because it is pandigital, but 2⋅12958631047 = 25917262094 is not.

Almost surely, 2^12958631047 is an apocalyptic number.

12958631047 is a deficient number, since it is larger than the sum of its proper divisors (682033233).

12958631047 is an equidigital number, since it uses as much as digits as its factorization.

12958631047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682033232.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 12958631047 in words is "twelve billion, nine hundred fifty-eight million, six hundred thirty-one thousand, forty-seven".