12875473474081 has 9 divisors (see below), whose sum is σ = 13677470877721. Its totient is φ = 12118035269632.

The previous prime is 12875473474067. The next prime is 12875473474099. The reversal of 12875473474081 is 18047437457821.

The square root of 12875473474081 is 3588241.

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

It can be written as a sum of positive squares in 4 ways, for example, as 1406142984481 + 11469330489600 = 1185809^2 + 3386640^2 .

It is not a de Polignac number, because 12875473474081 - 2⁷ = 12875473473953 is a prime.

It is a super-2 number, since 2×12875473474081² (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 (12875473474051) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 60894561 + ... + 61105633.

Almost surely, 2^{12875473474081} is an apocalyptic number.

12875473474081 is the 3588241-st square number.

12875473474081 is the 1794121-st centered octagonal number.

It is an amenable number.

12875473474081 is a deficient number, since it is larger than the sum of its proper divisors (801997403640).

12875473474081 is an frugal number, since it uses more digits than its factorization.

12875473474081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422180 (or 211090 counting only the distinct ones).

The product of its (nonzero) digits is 42147840, while the sum is 61.

The spelling of 12875473474081 in words is "twelve trillion, eight hundred seventy-five billion, four hundred seventy-three million, four hundred seventy-four thousand, eighty-one".