1412656456521 has 4 divisors (see below), whose sum is σ = 1883541942032. Its totient is φ = 941770971012.

The previous prime is 1412656456517. The next prime is 1412656456567. The reversal of 1412656456521 is 1256546562141.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1412656456521 - 2² = 1412656456517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1412656456501) 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 3 ways as a sum of consecutive naturals, for example, 235442742751 + ... + 235442742756.

It is an arithmetic number, because the mean of its divisors is an integer number (470885485508).

Almost surely, 2^{1412656456521} is an apocalyptic number.

It is an amenable number.

1412656456521 is a deficient number, since it is larger than the sum of its proper divisors (470885485511).

1412656456521 is an equidigital number, since it uses as much as digits as its factorization.

1412656456521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470885485510.

The product of its digits is 1728000, while the sum is 48.

The spelling of 1412656456521 in words is "one trillion, four hundred twelve billion, six hundred fifty-six million, four hundred fifty-six thousand, five hundred twenty-one".