1447370340653 has 4 divisors (see below), whose sum is σ = 1451091087420. Its totient is φ = 1443649593888.

The previous prime is 1447370340641. The next prime is 1447370340677. The reversal of 1447370340653 is 3560430737441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 306742068649 + 1140628272004 = 553843^2 + 1068002^2 .

It is a cyclic number.

It is not a de Polignac number, because 1447370340653 - 2²² = 1447366146349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1447370340598 and 1447370340607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1447370340623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1860372800 + ... + 1860373577.

It is an arithmetic number, because the mean of its divisors is an integer number (362772771855).

Almost surely, 2^{1447370340653} is an apocalyptic number.

It is an amenable number.

1447370340653 is a deficient number, since it is larger than the sum of its proper divisors (3720746767).

1447370340653 is an equidigital number, since it uses as much as digits as its factorization.

1447370340653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3720746766.

The product of its (nonzero) digits is 2540160, while the sum is 47.

The spelling of 1447370340653 in words is "one trillion, four hundred forty-seven billion, three hundred seventy million, three hundred forty thousand, six hundred fifty-three".