12451464044551 has 32 divisors (see below), whose sum is σ = 14912243140608. Its totient is φ = 10165149941760.

The previous prime is 12451464044543. The next prime is 12451464044647. The reversal of 12451464044551 is 15544046415421.

It is a cyclic number.

It is not a de Polignac number, because 12451464044551 - 2³ = 12451464044543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12451464044651) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 611765191 + ... + 611785543.

It is an arithmetic number, because the mean of its divisors is an integer number (466007598144).

Almost surely, 2^{12451464044551} is an apocalyptic number.

12451464044551 is a deficient number, since it is larger than the sum of its proper divisors (2460779096057).

12451464044551 is a wasteful number, since it uses less digits than its factorization.

12451464044551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36391.

The product of its (nonzero) digits is 1536000, while the sum is 46.

The spelling of 12451464044551 in words is "twelve trillion, four hundred fifty-one billion, four hundred sixty-four million, forty-four thousand, five hundred fifty-one".