12507677670521 has 8 divisors (see below), whose sum is σ = 13646699529888. Its totient is φ = 11368982520000.

The previous prime is 12507677670503. The next prime is 12507677670557.

12507677670521 is nontrivially palindromic in base 10.

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 12507677670521 - 2¹⁸ = 12507677408377 is a prime.

It is a super-2 number, since 2×12507677670521² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12507677670721) 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, 81597155 + ... + 81750296.

It is an arithmetic number, because the mean of its divisors is an integer number (1705837441236).

Almost surely, 2^{12507677670521} is an apocalyptic number.

12507677670521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12507677670521 is a deficient number, since it is larger than the sum of its proper divisors (1139021859367).

12507677670521 is a wasteful number, since it uses less digits than its factorization.

12507677670521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163354423.

The product of its (nonzero) digits is 8643600, while the sum is 56.

The spelling of 12507677670521 in words is "twelve trillion, five hundred seven billion, six hundred seventy-seven million, six hundred seventy thousand, five hundred twenty-one".