12670428969 has 63 divisors (see below), whose sum is σ = 20936188749. Its totient is φ = 7658786520.

The previous prime is 12670428943. The next prime is 12670429043. The reversal of 12670428969 is 96982407621.

The square root of 12670428969 is 112563.

It is a perfect power (a square), and thus also a powerful number.

12670428969 is a `hidden beast` number, since 126 + 7 + 0 + 428 + 96 + 9 = 666.

It is not a de Polignac number, because 12670428969 - 2⁵ = 12670428937 is a prime.

It is a super-2 number, since 2×12670428969² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12670428269) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 33431022 + ... + 33431400.

Almost surely, 2^12670428969 is an apocalyptic number.

12670428969 is the 112563-rd square number.

12670428969 is the 56282-nd centered octagonal number.

It is an amenable number.

12670428969 is a deficient number, since it is larger than the sum of its proper divisors (8265759780).

12670428969 is an frugal number, since it uses more digits than its factorization.

12670428969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 12670428969 in words is "twelve billion, six hundred seventy million, four hundred twenty-eight thousand, nine hundred sixty-nine".