1443319056551 has 4 divisors (see below), whose sum is σ = 1443426643872. Its totient is φ = 1443211469232.

The previous prime is 1443319056547. The next prime is 1443319056611. The reversal of 1443319056551 is 1556509133441.

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

It is a cyclic number.

It is not a de Polignac number, because 1443319056551 - 2² = 1443319056547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1443319056496 and 1443319056505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1443319056521) 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, 53773535 + ... + 53800368.

It is an arithmetic number, because the mean of its divisors is an integer number (360856660968).

Almost surely, 2^{1443319056551} is an apocalyptic number.

1443319056551 is a deficient number, since it is larger than the sum of its proper divisors (107587321).

1443319056551 is a wasteful number, since it uses less digits than its factorization.

1443319056551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107587320.

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 1443319056551 in words is "one trillion, four hundred forty-three billion, three hundred nineteen million, fifty-six thousand, five hundred fifty-one".