12530640277 has 8 divisors (see below), whose sum is σ = 13496896160. Its totient is φ = 11595059280.

The previous prime is 12530640257. The next prime is 12530640289. The reversal of 12530640277 is 77204603521.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12530640277 - 2¹¹ = 12530638229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12530640217) 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, 7667874 + ... + 7669507.

It is an arithmetic number, because the mean of its divisors is an integer number (1687112020).

Almost surely, 2^12530640277 is an apocalyptic number.

It is an amenable number.

12530640277 is a deficient number, since it is larger than the sum of its proper divisors (966255883).

12530640277 is a wasteful number, since it uses less digits than its factorization.

12530640277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15337443.

The product of its (nonzero) digits is 70560, while the sum is 37.

The spelling of 12530640277 in words is "twelve billion, five hundred thirty million, six hundred forty thousand, two hundred seventy-seven".