12530437845 has 8 divisors (see below), whose sum is σ = 20048700576. Its totient is φ = 6682900176.

The previous prime is 12530437837. The next prime is 12530437853. The reversal of 12530437845 is 54873403521.

It is an interprime number because it is at equal distance from previous prime (12530437837) and next prime (12530437853).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12530437845 - 2³ = 12530437837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12530437797 and 12530437806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417681247 + ... + 417681276.

It is an arithmetic number, because the mean of its divisors is an integer number (2506087572).

Almost surely, 2^12530437845 is an apocalyptic number.

12530437845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12530437845 is a deficient number, since it is larger than the sum of its proper divisors (7518262731).

12530437845 is an equidigital number, since it uses as much as digits as its factorization.

12530437845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835362531.

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 12530437845 in words is "twelve billion, five hundred thirty million, four hundred thirty-seven thousand, eight hundred forty-five".