12451542444 has 36 divisors (see below), whose sum is σ = 34336072680. Its totient is φ = 3773194560.

The previous prime is 12451542431. The next prime is 12451542461. The reversal of 12451542444 is 44424515421.

12451542444 is a `hidden beast` number, since 1 + 24 + 51 + 542 + 4 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12451542399 and 12451542408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15721249 + ... + 15722040.

Almost surely, 2^12451542444 is an apocalyptic number.

It is an amenable number.

12451542444 is an abundant number, since it is smaller than the sum of its proper divisors (21884530236).

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

12451542444 is a wasteful number, since it uses less digits than its factorization.

12451542444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31443310 (or 31443305 counting only the distinct ones).

The product of its digits is 102400, while the sum is 36.

The spelling of 12451542444 in words is "twelve billion, four hundred fifty-one million, five hundred forty-two thousand, four hundred forty-four".