12518377007 has 4 divisors (see below), whose sum is σ = 12539276400. Its totient is φ = 12497477616.

The previous prime is 12518376991. The next prime is 12518377013. The reversal of 12518377007 is 70077381521.

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

It is a cyclic number.

It is not a de Polignac number, because 12518377007 - 2⁴ = 12518376991 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 (12518377037) 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, 10448798 + ... + 10449995.

It is an arithmetic number, because the mean of its divisors is an integer number (3134819100).

Almost surely, 2^12518377007 is an apocalyptic number.

12518377007 is a deficient number, since it is larger than the sum of its proper divisors (20899393).

12518377007 is an equidigital number, since it uses as much as digits as its factorization.

12518377007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20899392.

The product of its (nonzero) digits is 82320, while the sum is 41.

The spelling of 12518377007 in words is "twelve billion, five hundred eighteen million, three hundred seventy-seven thousand, seven".