1543454656613 has 16 divisors (see below), whose sum is σ = 1670167226880. Its totient is φ = 1420775913216.

The previous prime is 1543454656547. The next prime is 1543454656633. The reversal of 1543454656613 is 3166564543451.

It is a cyclic number.

It is not a de Polignac number, because 1543454656613 - 2³² = 1539159689317 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 (1543454656633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496208 + ... + 1825686.

It is an arithmetic number, because the mean of its divisors is an integer number (104385451680).

Almost surely, 2^{1543454656613} is an apocalyptic number.

It is an amenable number.

1543454656613 is a deficient number, since it is larger than the sum of its proper divisors (126712570267).

1543454656613 is a wasteful number, since it uses less digits than its factorization.

1543454656613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330996.

The product of its digits is 15552000, while the sum is 53.

The spelling of 1543454656613 in words is "one trillion, five hundred forty-three billion, four hundred fifty-four million, six hundred fifty-six thousand, six hundred thirteen".