12740532506 has 16 divisors (see below), whose sum is σ = 20602184064. Its totient is φ = 5874153264.

The previous prime is 12740532499. The next prime is 12740532509. The reversal of 12740532506 is 60523504721.

It is not an unprimeable number, because it can be changed into a prime (12740532509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228230 + ... + 278513.

It is an arithmetic number, because the mean of its divisors is an integer number (1287636504).

Almost surely, 2^12740532506 is an apocalyptic number.

12740532506 is a deficient number, since it is larger than the sum of its proper divisors (7861651558).

12740532506 is a wasteful number, since it uses less digits than its factorization.

12740532506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507725.

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 12740532506 in words is "twelve billion, seven hundred forty million, five hundred thirty-two thousand, five hundred six".