12454521461 has 8 divisors (see below), whose sum is σ = 12508734744. Its totient is φ = 12400353280.

The previous prime is 12454521433. The next prime is 12454521481. The reversal of 12454521461 is 16412545421.

It can be written as a sum of positive squares in 4 ways, for example, as 1108224100 + 11346297361 = 33290^2 + 106519^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12454521461 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 (12454521481) 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 7 ways as a sum of consecutive naturals, for example, 617411 + ... + 637263.

It is an arithmetic number, because the mean of its divisors is an integer number (1563591843).

Almost surely, 2^12454521461 is an apocalyptic number.

It is an amenable number.

12454521461 is a deficient number, since it is larger than the sum of its proper divisors (54213283).

12454521461 is a wasteful number, since it uses less digits than its factorization.

12454521461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22551.

The product of its digits is 38400, while the sum is 35.

The spelling of 12454521461 in words is "twelve billion, four hundred fifty-four million, five hundred twenty-one thousand, four hundred sixty-one".