12425854473540 has 144 divisors (see below), whose sum is σ = 37863401651712. Its totient is φ = 3298476031488.

The previous prime is 12425854473523. The next prime is 12425854473541. The reversal of 12425854473540 is 4537445852421.

12425854473540 is a `hidden beast` number, since 1 + 2 + 4 + 2 + 5 + 8 + 54 + 47 + 3 + 540 = 666.

It is not an unprimeable number, because it can be changed into a prime (12425854473541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 338588472 + ... + 338625168.

It is an arithmetic number, because the mean of its divisors is an integer number (262940289248).

Almost surely, 2^{12425854473540} is an apocalyptic number.

12425854473540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12425854473540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18931700825856).

12425854473540 is an abundant number, since it is smaller than the sum of its proper divisors (25437547178172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12425854473540 is a wasteful number, since it uses less digits than its factorization.

12425854473540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45226 (or 45221 counting only the distinct ones).

The product of its (nonzero) digits is 21504000, while the sum is 54.

The spelling of 12425854473540 in words is "twelve trillion, four hundred twenty-five billion, eight hundred fifty-four million, four hundred seventy-three thousand, five hundred forty".