12398707907 has 4 divisors (see below), whose sum is σ = 12526529736. Its totient is φ = 12270886080.

The previous prime is 12398707883. The next prime is 12398707913. The reversal of 12398707907 is 70970789321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12398707907 is a prime.

It is a super-3 number, since 3×12398707907³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12398727907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63910769 + ... + 63910962.

It is an arithmetic number, because the mean of its divisors is an integer number (3131632434).

Almost surely, 2^12398707907 is an apocalyptic number.

12398707907 is a deficient number, since it is larger than the sum of its proper divisors (127821829).

12398707907 is an equidigital number, since it uses as much as digits as its factorization.

12398707907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127821828.

The product of its (nonzero) digits is 1333584, while the sum is 53.

The spelling of 12398707907 in words is "twelve billion, three hundred ninety-eight million, seven hundred seven thousand, nine hundred seven".