12530540715 has 32 divisors (see below), whose sum is σ = 24995990016. Its totient is φ = 5207496960.

The previous prime is 12530540713. The next prime is 12530540749. The reversal of 12530540715 is 51704503521.

12530540715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12530540715 - 2¹ = 12530540713 is a prime.

It is a super-2 number, since 2×12530540715² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (12530540713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5423322 + ... + 5425631.

It is an arithmetic number, because the mean of its divisors is an integer number (781124688).

Almost surely, 2^12530540715 is an apocalyptic number.

12530540715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12530540715 is a deficient number, since it is larger than the sum of its proper divisors (12465449301).

12530540715 is a wasteful number, since it uses less digits than its factorization.

12530540715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10848979.

The product of its (nonzero) digits is 21000, while the sum is 33.

The spelling of 12530540715 in words is "twelve billion, five hundred thirty million, five hundred forty thousand, seven hundred fifteen".