12547254451140 has 144 divisors (see below), whose sum is σ = 39852836919168. Its totient is φ = 3313449586944.

The previous prime is 12547254451079. The next prime is 12547254451159. The reversal of 12547254451140 is 4115445274521.

12547254451140 is a `hidden beast` number, since 1 + 2 + 5 + 4 + 7 + 2 + 54 + 451 + 140 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12032137 + ... + 13033296.

Almost surely, 2^{12547254451140} is an apocalyptic number.

12547254451140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12547254451140 is an abundant number, since it is smaller than the sum of its proper divisors (27305582468028).

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

12547254451140 is a wasteful number, since it uses less digits than its factorization.

12547254451140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25065560 (or 25065546 counting only the distinct ones).

The product of its (nonzero) digits is 896000, while the sum is 45.

The spelling of 12547254451140 in words is "twelve trillion, five hundred forty-seven billion, two hundred fifty-four million, four hundred fifty-one thousand, one hundred forty".