12507758507 has 2 divisors, whose sum is σ = 12507758508. Its totient is φ = 12507758506.

The previous prime is 12507758477. The next prime is 12507758519. The reversal of 12507758507 is 70585770521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12507758507 - 2⁶ = 12507758443 is a prime.

It is not a weakly prime, because it can be changed into another prime (12507758537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6253879253 + 6253879254.

It is an arithmetic number, because the mean of its divisors is an integer number (6253879254).

Almost surely, 2^12507758507 is an apocalyptic number.

12507758507 is a deficient number, since it is larger than the sum of its proper divisors (1).

12507758507 is an equidigital number, since it uses as much as digits as its factorization.

12507758507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 686000, while the sum is 47.

The spelling of 12507758507 in words is "twelve billion, five hundred seven million, seven hundred fifty-eight thousand, five hundred seven".