12546507407 has 8 divisors (see below), whose sum is σ = 14465759136. Its totient is φ = 10658979072.

The previous prime is 12546507401. The next prime is 12546507427. The reversal of 12546507407 is 70470564521.

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

It is not a de Polignac number, because 12546507407 - 2²⁰ = 12545458831 is a prime.

It is a super-2 number, since 2×12546507407² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12546507401) 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, 7929998 + ... + 7931579.

It is an arithmetic number, because the mean of its divisors is an integer number (1808219892).

Almost surely, 2^12546507407 is an apocalyptic number.

12546507407 is a deficient number, since it is larger than the sum of its proper divisors (1919251729).

12546507407 is a wasteful number, since it uses less digits than its factorization.

12546507407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15861697.

The product of its (nonzero) digits is 235200, while the sum is 41.

The spelling of 12546507407 in words is "twelve billion, five hundred forty-six million, five hundred seven thousand, four hundred seven".