12542753485 has 4 divisors (see below), whose sum is σ = 15051304188. Its totient is φ = 10034202784.

The previous prime is 12542753479. The next prime is 12542753519. The reversal of 12542753485 is 58435724521.

12542753485 = T₇₀₈₂₉ + T₇₀₈₃₀ + ... + T₇₀₈₃₃.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58435724521 = 73 ⋅800489377.

It can be written as a sum of positive squares in 2 ways, for example, as 9957844521 + 2584908964 = 99789^2 + 50842^2 .

It is a cyclic number.

It is not a de Polignac number, because 12542753485 - 2⁵ = 12542753453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1254275344 + ... + 1254275353.

It is an arithmetic number, because the mean of its divisors is an integer number (3762826047).

Almost surely, 2^12542753485 is an apocalyptic number.

It is an amenable number.

12542753485 is a deficient number, since it is larger than the sum of its proper divisors (2508550703).

12542753485 is an equidigital number, since it uses as much as digits as its factorization.

12542753485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508550702.

The product of its digits is 1344000, while the sum is 46.

The spelling of 12542753485 in words is "twelve billion, five hundred forty-two million, seven hundred fifty-three thousand, four hundred eighty-five".